CN105917655B - The device and method of broadcasted content are sent or received via one or more network - Google Patents
The device and method of broadcasted content are sent or received via one or more network Download PDFInfo
- Publication number
- CN105917655B CN105917655B CN201580004446.4A CN201580004446A CN105917655B CN 105917655 B CN105917655 B CN 105917655B CN 201580004446 A CN201580004446 A CN 201580004446A CN 105917655 B CN105917655 B CN 105917655B
- Authority
- CN
- China
- Prior art keywords
- data
- information
- broadcast
- grouping
- field
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 68
- 230000011664 signaling Effects 0.000 claims description 189
- 230000006978 adaptation Effects 0.000 claims description 20
- 230000002123 temporal effect Effects 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 description 202
- 210000004027 cell Anatomy 0.000 description 133
- 101000596046 Homo sapiens Plastin-2 Proteins 0.000 description 76
- 102100035182 Plastin-2 Human genes 0.000 description 76
- 238000013507 mapping Methods 0.000 description 68
- 238000010586 diagram Methods 0.000 description 59
- 238000011049 filling Methods 0.000 description 41
- 239000012092 media component Substances 0.000 description 29
- 230000001360 synchronised effect Effects 0.000 description 29
- 230000008569 process Effects 0.000 description 28
- 238000012384 transportation and delivery Methods 0.000 description 28
- 101000596041 Homo sapiens Plastin-1 Proteins 0.000 description 25
- 102100035181 Plastin-1 Human genes 0.000 description 25
- 239000000284 extract Substances 0.000 description 24
- NGVDGCNFYWLIFO-UHFFFAOYSA-N pyridoxal 5'-phosphate Chemical compound CC1=NC=C(COP(O)(O)=O)C(C=O)=C1O NGVDGCNFYWLIFO-UHFFFAOYSA-N 0.000 description 22
- 230000011218 segmentation Effects 0.000 description 21
- 238000013461 design Methods 0.000 description 20
- 238000002156 mixing Methods 0.000 description 17
- 238000012545 processing Methods 0.000 description 16
- 239000012634 fragment Substances 0.000 description 15
- 239000004065 semiconductor Substances 0.000 description 15
- 230000006870 function Effects 0.000 description 14
- 238000004891 communication Methods 0.000 description 12
- 238000003780 insertion Methods 0.000 description 11
- 239000000203 mixture Substances 0.000 description 11
- 230000037431 insertion Effects 0.000 description 10
- 238000003860 storage Methods 0.000 description 10
- 230000001419 dependent effect Effects 0.000 description 9
- 230000003068 static effect Effects 0.000 description 9
- 238000012937 correction Methods 0.000 description 8
- 239000011159 matrix material Substances 0.000 description 8
- 238000011084 recovery Methods 0.000 description 8
- 239000000969 carrier Substances 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000005538 encapsulation Methods 0.000 description 7
- 230000002708 enhancing effect Effects 0.000 description 7
- 241001269238 Data Species 0.000 description 6
- 240000002853 Nelumbo nucifera Species 0.000 description 6
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 6
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 6
- 238000001514 detection method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 235000013305 food Nutrition 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- 230000000717 retained effect Effects 0.000 description 6
- 230000008054 signal transmission Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000004913 activation Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 239000000470 constituent Substances 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 230000001965 increasing effect Effects 0.000 description 5
- 238000007726 management method Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000006116 polymerization reaction Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- AWSBQWZZLBPUQH-UHFFFAOYSA-N mdat Chemical compound C1=C2CC(N)CCC2=CC2=C1OCO2 AWSBQWZZLBPUQH-UHFFFAOYSA-N 0.000 description 4
- 230000003252 repetitive effect Effects 0.000 description 4
- 241000208340 Araliaceae Species 0.000 description 3
- 244000294411 Mirabilis expansa Species 0.000 description 3
- 235000015429 Mirabilis expansa Nutrition 0.000 description 3
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 3
- 235000003140 Panax quinquefolius Nutrition 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 235000008434 ginseng Nutrition 0.000 description 3
- 235000013536 miso Nutrition 0.000 description 3
- 238000004904 shortening Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 241001672694 Citrus reticulata Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000012217 deletion Methods 0.000 description 2
- 230000037430 deletion Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000005562 fading Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000002372 labelling Methods 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 101100031652 Arabidopsis thaliana PTM gene Proteins 0.000 description 1
- 101000853064 Homo sapiens Mitochondrial import inner membrane translocase subunit Tim8 B Proteins 0.000 description 1
- 102100026808 Mitochondrial import inner membrane translocase subunit Tim8 A Human genes 0.000 description 1
- 102100036655 Mitochondrial import inner membrane translocase subunit Tim8 B Human genes 0.000 description 1
- 101100481512 Mus musculus Timm8a1 gene Proteins 0.000 description 1
- 101100277345 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) DDP1 gene Proteins 0.000 description 1
- 101150064104 TIMM8A gene Proteins 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000001235 constant-final-state spectroscopy Methods 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005388 cross polarization Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 210000003317 double-positive, alpha-beta immature T lymphocyte Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013213 extrapolation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000013439 planning Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/65—Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/18—Arrangements for synchronising broadcast or distribution via plural systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/76—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet
- H04H60/81—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself
- H04H60/82—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself the transmission system being the Internet
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
- H04L65/611—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for multicast or broadcast
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/18—Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/28—Timers or timing mechanisms used in protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/2362—Generation or processing of Service Information [SI]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2381—Adapting the multiplex stream to a specific network, e.g. an Internet Protocol [IP] network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/242—Synchronization processes, e.g. processing of PCR [Program Clock References]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/643—Communication protocols
- H04N21/6437—Real-time Transport Protocol [RTP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
- H04N21/64707—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless for transferring content from a first network to a second network, e.g. between IP and wireless
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
- H04N21/8456—Structuring of content, e.g. decomposing content into time segments by decomposing the content in the time domain, e.g. in time segments
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/854—Content authoring
- H04N21/85403—Content authoring by describing the content as an MPEG-21 Digital Item
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/854—Content authoring
- H04N21/8547—Content authoring involving timestamps for synchronizing content
Abstract
The present invention provides a kind of equipment for receiving broadcasted content via one or more network.The equipment includes: broadcast network interface, and for the broadcast network interface for receiving the broadcasting stream including the first protocol packet via broadcasting network, the first protocol packet includes the first part of broadcasted content；Heterogeneous network interface, the heterogeneous network interface are used to receive the second protocol grouping of the second part including broadcasted content via heterogeneous network；And processor, the processor are used for based on the information for including in third protocol packet, carry out configuration broadcast content using the first protocol packet and second protocol grouping.
Description
Technical field
It is and more specific the present invention relates to the method and apparatus for supporting mixing to broadcast in a digital broadcasting system
Ground is related to the transmission for combining in a digital broadcasting system and using sending/receiving from one or more transmission network
Stream transmits/receives processing method and equipment.In addition, the present invention relates to for using different agreements in a digital broadcasting system
Processing method and equipment are transmitted/received to combine and using grouping.
Background technique
Digit broadcasting system provides content by terrestrial broadcast, satellite broadcasting or wired broadcasting network.However, these are wide
Network is broadcast with confined bandwidth and is difficult to energetically participate in broadcasted content for spectators.
Particularly, by the bandwidth of its broadcasting network for sending broadcasted content since the diversity and high quality of content reach
The limit.In order to solve this, data are received by broadcasting network and internet and at the same time using data mixing broadcast system just
In exploitation.
However, passing through broadcasting network and internet point for synchronous when transmitting stream is combined in mixing broadcast system
The method for the transmitting stream not sent is suggested not yet.In addition, mixing broadcast system require for synchronous through broadcasting network and
The complicated calculating for the transmitting stream that internet is sent respectively.
Summary of the invention
Technical problem
Current mixing broadcast system has a problem in that individual interior by way of combining and having the step that not seek common ground
The transmitting stream for providing and being sent by each of broadcasting network and internet is provided.
In addition, mixing broadcast system has a problem in that the excessive calculated performance for requiring receiver passes through broadcast to synchronize
The transmitting stream that each of network and internet are sent.
Current mixing broadcast system has a problem in that when grouping should be combined so that broadcasted content is presented using difference
Agreement it is synchronous between grouping.
The purpose of the present invention is designed to solve the above problems.
Solution to the problem
In order to realize purpose and other advantages and in accordance with the purpose of the invention, such as embodies and widely describe herein
, the present invention provides a kind of equipment for receiving broadcasted content via one or more network.The equipment includes: broadcast
Network interface, the broadcast network interface is for receiving the broadcasting stream including the first protocol packet, the first association via broadcasting network
View grouping includes the first part of broadcasted content；Heterogeneous network interface, the heterogeneous network interface via heterogeneous network for connecing
Packet receiving includes the second protocol grouping of the second part of broadcasted content, and wherein broadcasting stream further comprises third protocol packet,
Third protocol packet includes the metadata between the different agreement grouping sent via one or more network for synchronization,
Middle third protocol packet includes the specified location information that the position that second protocol is grouped is obtained from it, and wherein third agreement point
Group further comprises the first timing information and the second timing information, which, which specifies to work as, uses the first protocol packet
When the first timing, specified the second timing when second protocol grouping is used of second timing information；Processor, the processing
Device is used to come in configuration broadcast based on the information for including in third protocol packet using the first protocol packet and second protocol grouping
Hold.
Preferably, wherein broadcasting stream further comprise using the agreement other than the agreement of the first protocol packet the 4th
Protocol packet, and wherein third protocol packet further comprises specified the 4th timing when the 4th protocol packet is used
4th timing information.
Preferably, wherein the first protocol packet is grouped corresponding to real-time protocol (RTP) (RTP), wherein second protocol packet bearer
MPEG DASH (the dynamic adaptation stream based on HTTP) segment, and wherein third protocol packet corresponds to RTP Control Protocol
(RTCP) it is grouped.
Preferably, wherein processor will be mapped to Network Time Protocol by the first specified timing of the first timing information
(NTP) timeline, by what is specified by the second timing information of the second protocol grouping for being applied to obtain based on location information
Second timing is mapped to NTP timeline, and is grouped by using the first protocol packet of NTP time line locking and second protocol
Configuration broadcast content.
Preferably, wherein the first timing information corresponds to the NTP timestamp and RTP timestamp of the first protocol packet, and
Wherein the second timing information corresponds to DASH media presentation temporal information.
Preferably, wherein third protocol packet further comprises the format information for specifying the format of the second timing information.
Preferably, wherein processor further calculates at the time point when the first protocol packet is received in NTP
Between stab offset between receiver wall clock time, the first timing and the second timing are adjusted based on offset calculated, and
Come in configuration broadcast by using the first timing being conditioned and second the first protocol packet of timing synchronization and second protocol grouping
Hold.
The present invention provides a kind of method for receiving broadcasted content via one or more network in the receiver.It should
Method includes: to receive the broadcasting stream including the first protocol packet via broadcasting network, and the first protocol packet includes broadcasted content
First part；The second protocol grouping of the second part including broadcasted content, and wherein broadcasting stream are received via heterogeneous network
It further comprise third protocol packet, third protocol packet includes to be grouped via the different agreement that one or more network is sent
Between for synchronous metadata, wherein third protocol packet includes the specified position that the position that second protocol is grouped is obtained from it
Information, and wherein third protocol packet further comprises the first timing information and the second timing information, first timing information
Specified the first timing when using the first protocol packet, second timing information are specified when second protocol is grouped when being used
Second timing；Based on the information for including in third protocol packet, configured using the first protocol packet and second protocol grouping wide
Broadcast content.
Preferably, wherein broadcasting stream further comprise using the agreement other than the agreement of the first protocol packet the 4th
Protocol packet, and wherein third protocol packet further comprises specified the 4th timing when the 4th protocol packet is used
4th timing information.
Preferably, wherein the first protocol packet is grouped corresponding to real-time protocol (RTP) (RTP), wherein second protocol packet bearer
MPEG DASH (the dynamic adaptation stream based on HTTP) segment, and wherein third protocol packet corresponds to RTP Control Protocol
(RTCP) it is grouped.
Preferably, this method further comprises that will be mapped to network time by the first timing that the first timing information is specified
Agreement (NTP) timeline will be referred to by the second timing information of the second protocol grouping for being applied to be obtained based on location information
The second fixed timing is mapped to NTP timeline, and by using the first protocol packet of NTP time line locking and second protocol point
Group carrys out configuration broadcast content.
Preferably, wherein the first timing information corresponds to the NTP timestamp and RTP timestamp of the first protocol packet, and
Wherein the second timing information corresponds to DASH media presentation temporal information.
Preferably, wherein third protocol packet further comprises the format information for specifying the format of the second timing information.
Preferably, this method further comprises: calculating at the time point when the first protocol packet is received in NTP
Between stab offset between receiver wall clock time, the first timing and the second timing are adjusted based on offset calculated, and
Come in configuration broadcast by using the first timing being conditioned and second the first protocol packet of timing synchronization and second protocol grouping
Hold.
Beneficial effect
The present invention is passing through what each of heterogeneous network or grouping were sent using different agreements is easily synchronous
It is effective in transmitting stream.
No matter how the present invention synchronizes by can be applied to widely used isomery in the characteristic of heterogeneous network or agreement
It is effective in the transmitting stream that each of network is sent.
The present invention is effectively, because it can be mentioned by heterogeneous network or different agreements in enhancing user is convenient
For the various broadcast datas that can be combined with identical content.
Detailed description of the invention
Attached drawing is included to provide a part further understood and be merged and form the application of the invention, diagram
The embodiment of the present invention and together with description the principle of the present invention that lays down a definition.In the accompanying drawings:
Fig. 1 illustrates embodiment according to the present invention and sends the knot for being used for the device of broadcast singal of following broadcast service
Structure.
Fig. 2 illustrates input format block according to an embodiment of the invention.
The input format block of Fig. 3 diagram according to another embodiment of the invention.
The input format block of Fig. 4 diagram according to another embodiment of the invention.
The BICM block of Fig. 5 diagram embodiment according to the present invention.
The BICM block of Fig. 6 diagram according to another embodiment of the invention.
Fig. 7 illustrates frame structure block according to an embodiment of the invention.
The OFDM that Fig. 8 illustrates embodiment according to the present invention generates block.
Fig. 9 illustrates embodiment according to the present invention and receives the knot for being used for the device of broadcast singal of following broadcast service
Structure.
The frame structure of Figure 10 diagram embodiment according to the present invention.
Figure 11 illustrates the signaling layered structure of the frame of embodiment according to the present invention.
The leading signaling data of Figure 12 diagram embodiment according to the present invention.
The PLS1 data of Figure 13 diagram embodiment according to the present invention.
The PLS2 data of Figure 14 diagram embodiment according to the present invention.
The PLS2 data of Figure 15 diagram according to another embodiment of the invention.
Figure 16 illustrates the logical construction of the frame of embodiment according to the present invention.
Figure 17 illustrates the PLS mapping of embodiment according to the present invention.
Figure 18 illustrates the EAC mapping of embodiment according to the present invention.
Figure 19 illustrates the FIC mapping of embodiment according to the present invention.
Figure 20 illustrates the type of the DP of embodiment according to the present invention.
Figure 21 illustrates the DP mapping of embodiment according to the present invention.
The FEC structure of Figure 22 diagram embodiment according to the present invention.
The Bit Interleave of Figure 23 diagram embodiment according to the present invention.
Figure 24 illustrates cell word (cell-word) demultiplexing of embodiment according to the present invention.
Figure 25 illustrates the time-interleaved of embodiment according to the present invention.
Figure 26 illustrates the basic operation of the ranks block interleaver of the distortion of embodiment according to the present invention.
The operation of the ranks block interleaver of the distortion of Figure 27 diagram according to another embodiment of the present invention.
The diagonal way that Figure 28 illustrates the ranks block interleaver of the distortion of embodiment according to the present invention reads pattern.
The XFECBLOCK being interleaved from each intertexture array of Figure 29 diagram embodiment according to the present invention.
Figure 30 is the view for showing the protocol stack for next-generation broadcast system of embodiment according to the present invention.
Figure 31 is the view for illustrating the broadcasting frame of embodiment according to the present invention.
Figure 32 is the view of broadcasting frame according to another embodiment of the present invention.
Figure 33 is the view of the structure of the transmission grouping for the transmission broadcast service for illustrating embodiment according to the present invention.
Figure 34 is the view for illustrating the meaning of network protocol of embodiment according to the present invention.
Figure 35 is the view for illustrating the configuration of broadcast receiver of embodiment according to the present invention.
Figure 36 is the view for illustrating the configuration of broadcast receiver according to another embodiment of the present invention.
Figure 37 is diagram embodiment according to the present invention for obtaining service and/or content in next-generation broadcast system
Framework view.
Figure 38 is the view for illustrating the broadcast service signaling table of embodiment according to the present invention.
Figure 39 is the view for illustrating the meaning of service_category field according to another embodiment of the present invention.
Figure 40 is the view of broadcast service signaling table according to another embodiment of the present invention.
Figure 41 is the view of stream identifier descriptor according to another embodiment of the present invention.
Figure 42 is the operation when broadcast transmitting device sends service signaling table for illustrating embodiment according to the present invention
View.
When Figure 43 is the broadcast packe being packetized when broadcast receiver reception for illustrating embodiment according to the present invention
Operation view.
Figure 44 is the view for illustrating the segment configuration of embodiment according to the present invention.
Figure 45 is real time transport protocol (RTP) grouping for real-time content transmission for illustrating embodiment according to the present invention
Structure view.
Figure 46 is the media based on ISO base media file format (ISO BMFF) for illustrating embodiment according to the present invention
The view of file format.
Figure 47 is the configuration for illustrating the payload header in grouping payload of embodiment according to the present invention
View.
Figure 48 is the payload configuration for illustrating the transmission grouping of wherein one media data of packetizing in a grouping
View.
Figure 49 is to illustrate to match in the payload that wherein transmission of one media data of packetizing is grouped in a grouping
The view set.
Figure 50 is the view of the configuration for the transmission grouping that the plurality of media data of diagram is packetized in a grouping.
Figure 51 is the view for illustrating the configuration of polymerized unit according to another embodiment of the present invention.
Figure 52 is the view for illustrating the payload of the grouping of segmentation of embodiment according to the present invention.
Figure 53 is the view for illustrating the configuration of the payload in the grouping of segmentation according to another embodiment of the present invention
Figure.
Figure 54 is the view when the media file based on ISO BMFF is segmented into multiple groupings by broadcast transmitting device.
Figure 55 is view of the diagram by the first segmenting unit of broadcast transmission device packetizing.
Figure 56 is that illustrate embodiment according to the present invention include other than starting data in segmenting unit data
The view of the segmenting unit of remaining data.
Figure 57 be diagram when payload data do not include include start data segmenting unit data and including end number
According to segmenting unit data when payload configuration view.
Figure 58 be diagram include in divided entire media data include receive data segmenting unit it is effective
The view of the configuration of load.
Figure 59 is the view for illustrating the timeline signaling table of metadata of embodiment according to the present invention.
Figure 60 is the payload number for illustrating wherein one metadata of packetizing in the payload data of transmission grouping
According to configuration view.
Figure 61 is embodiment according to the present invention when the payload data of transmission grouping includes the member for timeline
The view of data.
Figure 62 is the view when the multiple metadata of packetizing in a transmission grouping.
Figure 63 is the view when a transmission grouping includes several timeline information.
Figure 64 is that the one of metadata of diagram is divided and the grouping being packetized in multiple transmission groupings is effective
The view of load.
Figure 65 is the view for illustrating metadata segment header according to another embodiment of the present invention.
Figure 66 is the view for illustrating the operation when broadcast receiver receives broadcast packe of embodiment according to the present invention
Figure.
Figure 67 is to work as to send video flowing using RTP by broadcasting network and use by Internet based on tray
The media data of formula sends view when video flowing.
Figure 68 is the view for illustrating the grammer of timeline component access unit according to another embodiment of the present invention.
Figure 69 illustrates the biography for the support media sync on real time content transportation protocol of embodiment according to the present invention
Send packet format.
The profile of Figure 70 diagram embodiment according to the present invention specifically extends.
The RTPC application packet corresponding with the RTCP of application definition grouping of Figure 71 diagram embodiment according to the present invention.
Figure 72 illustrate embodiment according to the present invention using relevant data.
Figure 73 illustrates the protocol stack as embodiment of the invention that can be applied to broadcast system.
Figure 74 illustrates RTP as embodiment of the invention and the conversion of time to receiver wall clock time is presented.
Figure 75 diagram is as embodiment of the invention to be used for one of track of video, audio track, a Yi Jiyi
A closed caption track via the case where there is the broadcast of RTP to be delivered protocol stack.
Figure 76 diagram is as embodiment of the invention to be used for one of track of video, audio track, a Yi Jiyi
The protocol stack for the case where a closed caption track is delivered using the ISO BMFF on ALC/LCT+ via broadcast.
Figure 77 illustrate it is as embodiment of the invention in broadcast channel via RTP delivering continuous media component and
Via the Working Examples of the synchronization between the continuous media component of DASH delivering on broadband.
Figure 78 illustrate it is as embodiment of the invention in broadcast channel via RTP delivering continuous media component and
Via the mode of the synchronization between the continuous media component of DASH delivering on broadband.
Figure 79 illustrates the example of the RTCP grouping of the application definition as another embodiment of the present invention.
Figure 80 illustrates the example of the RTCP sender report packet header as another embodiment of the present invention.
Figure 81 illustrates the protocol stack as embodiment of the invention for the mixing delivering with RTP.
Figure 82 illustrates the conversion that time and receiver wall clock time line is presented in DASH as embodiment of the invention.
Figure 83 diagram content as embodiment of the invention via DASH (unicast) delivering is passed with via ALC/LCT+
The synchronization for the content sent.
Figure 84 diagram content as embodiment of the invention via DASH (unicast) delivering is passed with via ALC/LCT+
The mode of the synchronization for the content sent.
Figure 85 illustrates as embodiment of the invention for the mixing delivering with the ISO BMFF on ALC/LCT+
Protocol stack.
Specific embodiment
The preferred embodiment of the present invention will be introduced in detail now, example illustrates in the accompanying drawings.Detailed description will be under
Face is given with reference to the accompanying drawings, and is intended to explain exemplary embodiment of the present invention, rather than only show to realize according to the present invention
Embodiment.Below be described in detail includes that specific details deeply understands to provide the present invention.But for this field
It is clear that practicing the present invention may not need these specific details for technical staff.
Although the most of terms being used in the present invention are selected from the general term that this field is widely used
It selects, but some terms are arbitrarily selected via applicant, and its meaning is as needed in the following description specifically
It is bright.Therefore, the present invention should be understood based on the desired meaning of the term, rather than its simple title or meaning understand.
The present invention is provided to send and receive the device and method of the broadcast singal for following broadcast service.According to this
Following broadcast service of the embodiment of invention includes terrestrial broadcast service, mobile broadcast service, UHDTV service etc..
Term " signaling " in the present invention can indicate from broadcast system, internet system and/or broadcast/mutually
The information on services (SI) that networking convergence yoke sends and receivees.Information on services (SI) may include receiving from existing broadcast system
The broadcast service information (for example, ATSC-SI and/or DVB-SI) arrived.
Term " broadcast system " can conceptually not only include from terrestrial broadcast, wired broadcasting, satellite broadcasting and/
Or the signal that receives of mobile broadcast and/or data, and including from such as Internet radio, broadband broadcast, communication broadcast,
The signal and/or data that data broadcasting and/or VOD (video on demand) are received.
Term " PLP " can indicate the predetermined unit for sending the data being comprised in physical layer.Therefore,
Term " PLP " can also be replaced by term " data cell " or " data pipe " if necessary.
It is configured to be used as with the mixing broadcast service that broadcasting network and/or Internet interact in number
Representative application used in word TV (DTV) service.Mix broadcast service in real time on network send with pass through land it is wide
The related enhancing data of broadcast A/V (audio/video) content of network transmission are broadcast, or broadcast A/V is sent by network in real time
The some parts of content allow users to experience various contents.
The present invention is intended to provide for encapsulating IP grouping, MPEG-2TS grouping and can be applied to wide in generation digital
The method for broadcasting the grouping of other broadcast systems in system, so that IP grouping, MPEG-2TS grouping and grouping can be sent
To physical layer.In addition, the present invention proposes the method for sending -2 signaling of layer using identical header format.
It can be by servicing the content realized and be described below.For example, signal processor, protocol processes can be passed through
Device, processor and/or packet generator execute following processes.
In the term being used in the present invention, real-time (RT) service means real time service on literal.That is, RT service is
Pass through the service of time restriction.On the other hand, Non-real-time services (NRT) service means to exclude the Non-real-time services of RT service.That is,
NRT service is the not service by time restriction.Data for NRT service will be referred to as NRT service data.
Radio receiver according to the present invention can pass through such as medium of terrestrial broadcast, wired broadcasting or internet
Receive non real-time (NRT) service.NRT service is stored in the storage medium of radio receiver and then predetermined
Time is shown on the display apparatus according to the request of user.In one embodiment, NRT service is in the form of a file
It is received and is then store in storage medium.In one embodiment, storage medium is installed in radio receiver
Internal hard drive drive (HDD).In another example, storage medium can be connected to the logical of the outside of broadcast receiver system
With universal serial bus (USB) memory or outside HDD.Signaling information is for receiving the file of composition NRT service, storing file
It is required in storage medium and file being supplied to for user.In the present invention, such signaling information will be by
Referred to as NRT service signaling information or NRT service signaling data.According to the method for obtaining IP datagram, NRT according to the present invention
Service can be classified into fixed NRT service and mobile NRT service.Particularly, fixed NRT service is provided to fixation
Radio receiver, and mobile NRT service is provided to mobile broadcast receiver.In the present invention, fixed NRT service
It will be described as embodiment.However, the present invention can be applied to mobile NRT service.
It is that interactive experience is supplied to spectators using (or synchronous application) in the term being used in the present invention
To improve the data service of viewing experience.Using can be named as triggering statement object (TDO), statement object (DO) or
Person NRT statement object (NDO).
In the term being used in the present invention, triggering be for identification signaling and be arranged application or application in thing
The signaling elements of the supply time of part.Triggering may include TDO parameter list (TPT) (this can be referred to as TDO param elements)
Location information, TPT be include signaling elements for operating the metadata of application in a specific range.
Base (time base) triggering and/or activation trigger when triggering may be used as.Time-base trigger is used to set up for building
The when base of the criterion of the recovery time of discussion part.When activation trigger is used to set up application or the operation of the event in application
Between.Operate beginning, end, pause, interruption and/or the recovery of the event in can correspond to apply or apply.Shi Ji
Message is used as time-base trigger or time-base trigger is used as base time message.The activation that will be described below
Message is used as activation trigger or activation trigger is used as activate message.
When content is reproduced, media time is used to the parameter with reference to specific time.
Additional information in statement object (TDO) the instruction broadcasted content of triggering.TDO is to trigger broadcasted content according to timing
In additional information concept.In addition, in the case where program of piloting is broadcasted, pass through the current of the program of piloting of spectators' first choice
Ranking can be shown together with corresponding broadcast program.At this moment, the additional information about the current standings for the participant that pilots
It can be TDO.TDO can be changed by the two-way communication with spectators or can be reflected in TDO in the intention of spectators
In the state of provide.
The device and method for transmission of embodiment according to the present invention can be classified into for terrestrial broadcast service
One base profile, the hand-held profile for mobile broadcast service and the advanced profile for UHDTV attached drawing.In such feelings
Under condition, one base profile can be used as the profile for both terrestrial broadcast service and mobile broadcast service.That is, one base profile energy
Enough it is used to define the concept of the profile including mobile profile.This can be changed according to the intention of designer.
The present invention can be used for future via non-MIMO (multiple-input and multiple-output) or MIMO processing according to one embodiment
Broadcast service broadcast singal.The non-MIMO scheme of embodiment according to the present invention may include that (multi input list is defeated by MISO
Out), SISO (single-input single-output) scheme etc..
Although MISO or MIMO use two antennas, and the present invention can fit for the sake of description conveniently
System for using two or more antennas.
The present invention can define three physical layer (PL) profiles (profile) (basic, hand-held and advanced profile) each quilt
Optimization is obtained with minimizing receiver complexity for performance needed for specific use situation.Physical layer (PHY) profile is
Corresponding receiver is by the subset of all configurations of implementation.
The shared most of functional block of three PHY profiles is still, slightly different in terms of specific module and/or parameter.
Other PHY profile can limit in future.For system evolved, following attribute can also be via following extension frame
(FEF) it is multiplexed in single RF channel with existing profile.The details of each PHY profile is described below.
1. basic profile
Basic profile indicates the main use situation for being typically connected to the reception device of the fixation of roof antenna.Basis
Profile further includes that can transport a place, but belong to the relatively fixed mancarried device for receiving classification.Basic profile
Using hand-held device or even vehicle can be extended to by certain improved implementations, still, basic profile is received
Those service conditions are not expected in device operation.
Received target SNR range is from about 10 to 20dB comprising existing broadcast system is (for example, ATSC A/
53) 15dB SNR receives ability.Receiver complexity is serious unlike in battery-operated hand-held device with power consumption, holds
Device will use hand-held profile.Key system perameter for basic profile is listed in table 1 below.
Table 1
[table 1]
| LDPC code word length | 16K, 64K bit |
| Constellation size | 4~10bpcu (bit that each channel uses) |
| Time de-interweaving memory size | ≤219Cell of data |
| Pilot frequency design | Pilot frequency design for fixed reception |
| FFT size | 16K, 32K point |
2. hand-held profile
Hand-held profile design is used in the hand-held and car-mounted device with battery-powered operations.The device can be with pedestrian
Or car speed is mobile.Power consumption and receiver complexity are very important for holding the implementation of the device of profile.It is hand-held
The target SNR range of profile is about 0 to 10dB, still, when being intended for deeper indoor reception, is configurable to reach
Lower than 0dB.
Other than low SNR ability, the adaptability of the Doppler effect as caused by receiver mobility is hand-held letter
The most important performance quality of shelves.Key system perameter for holding profile is listed in table 2 below.
Table 2
[table 2]
| LDPC code word length | 16K bit |
| Constellation size | 2~8bpcu |
| Time de-interweaving memory size | ≤218Cell of data |
| Pilot frequency design | For mobile and indoor reception pilot frequency design |
| FFT size | 8K, 16K point |
3. advanced profile
Advanced profile provides highest channel capacity as cost using bigger implementation complexity.The profile is needed using MIMO
It sends and receives, and UHDTV service is to the specially designed target use situation of the profile.The capacity of raising can be also used for
Allow to improve service number in given bandwidth, for example, multiple SDTV or HDTV service.
The target SNR range of advanced profile is about 20 to 30dB.MIMO transmission can primitively use existing ellipse
Polar transmission device, and the transmission of total power cross-polarization will be expanded in future.Key system perameter for advanced profile exists
It is listed in table 3 below.
Table 3
[table 3]
| LDPC code word length | 16K, 64K bit |
| Constellation size | 8~12bpcu |
| Time de-interweaving memory size | ≤219Cell of data |
| Pilot frequency design | Pilot frequency design for fixed reception |
| FFT size | 16K, 32K point |
In this case, basic profile can be used as both terrestrial broadcast service and mobile broadcast service
Profile.That is, basic profile can be used for the concept that definition includes the profile of mobile profile.Moreover, advanced profile can be drawn
It is divided into the advanced profile for the basic profile with MIMO and the advanced profile for the hand-held profile with MIMO.In addition,
Three kinds of profiles can be changed according to the intention of designer.
Following term and definition can be applied to the present invention.Following term and definition can be changed according to design.
Auxiliary flow: the sequence of the cell of the data for the modulation and compiling that not yet define is carried, can be used for not
To extend or be required by broadcaster or network operator
Master data pipeline: the data pipe of carrying service signaling data
Base band frame (or BBFRAME): the Kbch of the input to a FEC cataloged procedure (BCH and LDPC are encoded) is formed
The set of bit
Cell: pass through the modulation value of a carriers carry of OFDM transmission
Block encoded: one in the block of the LDPC coding of the block or PLS2 data of the LDPC coding of PLS1 data
Data pipe: the logic channel in carrying service data or the physical layer of associated metadata can carry one
A or multiple services or serviced component.
Data pipe unit: for cell of data to be distributed to the basic unit of DP in frame.
Data symbol: not being that (frame signaling symbols and frame border symbol are included in for the OFDM symbol of leading symbol in frame
In data symbol)
DP_ID: this 8 bit field uniquely identifies the DP in the system identified by SYSTME_ID
Mute cell: carrying be used to fill the pseudorandom for the remaining capacity for being not used for PLS signaling, DP or auxiliary flow
The cell of value
Urgent warning channel: the part of the frame of carrying EAS information data
Frame: with leading beginning and with the physical layer time slot of frame border sign-off
Frame repetitive unit: belong to the set of the frame of the same or different physical layer profile including FET, in superframes
It is repeated eight times
Fast information channel in dab receiver: the logic channel in the frame of the map information between carrying service and corresponding basic DP
The set of the bit of the LDPC coding of FECBLOCK:DP data
FFT size: it is used for the nominal FFT size of AD HOC, equal to the work expressed in the period of basic period T
Jump symbol period Ts
Frame signaling symbols: in the certain combination of FFT size, protection interval and scattered pilot frequency design, in frame
The OFDM symbol for the pilot density with higher that beginning uses carries a part of PLS data
Frame border symbol: in the certain combination of FFT size, protection interval and scattered pilot frequency design, in frame
The OFDM symbol for the pilot density with higher that end uses
Frame group: the set of all frames of PHY ProfileType having the same in superframes.
Future extension frame: it can be used for the physical layer time slot in superframe of the following extension, with leading beginning
Futurecast UTB system: the physical-layer broadcasts system of proposition, input is one or more MPEG2-TS
Either IP or general stream, and its output is RF signal
Inlet flow: for being delivered to the stream of all data of the service of terminal user by system.
Normal data symbols: the data symbol of frame signaling and frame border symbol is excluded
PHY profile: the subset for all configurations that corresponding receiver should be realized
PLS: the physical layer signaling data being made of PLS1 and PLS2
PLS1: the first set of the PLS data carried in there is fixed size, coding and the FSS of modulation symbol,
Carry parameter required for the essential information and decoding PLS2 about system
Note: PLS1 data are kept constant within the duration of frame group.
PLS2: the second set of the PLS data sent in FSS symbol, carry about system and DP it is more in detail
PLS data
PLS2 dynamic data: the PLS2 data that can dynamically change frame by frame
PLS2 static data: static PLS2 data are kept within the duration of frame group
Leading signaling data: the signaling data of the basic model of identifying system is carried and is used for by leading symbol
Leading symbol: carrying basic PLS data and is located at the frequency pilot sign of the regular length of the beginning of frame
Note: leading symbol be primarily used to the scanning of quick initial strip with detection system signal, its timing, frequency shift (FS),
And FFT size.
Retain so as to future usage: this document is not defined but can be defined in future
Superframe: the set of eight frame repetitive units
Time-interleaved piece (TI block): in the set for wherein executing time-interleaved cell, with time interleave memory
One using corresponding
TI group: the unit of the dynamic capacity allocation for specific DP is executed on it, is made of, dynamically changes integer
The number of XFECBLOCK.
Note: TI group can be directly mapped to a frame or can be mapped to multiple frames.It may include one
A or multiple TI blocks.
Class1 DP: wherein all DP are mapped to the DP of the frame of frame in a tdm fashion
Type 2DP: wherein all DP are mapped to the DP of the frame of frame in a manner of FDM
XFECBLOCK: the set of Ncell cell of all bits of one LDPC FECBLOCK of carrying
Fig. 1 diagram embodiment according to the present invention is used to send the knot of the broadcast singal device for following broadcast service
Structure.
The device that embodiment according to the present invention is used to send the broadcast singal of the broadcast service for future may include defeated
Entry format block 1000, BICM (Bit Interleave compiling and modulation) block 1010, frame structure block 1020, OFDM (orthogonal frequency division multiplexing)
It generates block 1030 and signaling generates block 1040.It will be given for sending the description of the operation of each module of broadcast singal device.
IP stream/grouping and MPEG2-TS are main input formats, other stream types are by as conventional stream process.In addition to these
Except data input, management information is entered to control the scheduling and distribution of the corresponding bandwidth for each inlet flow.One
Or multiple TS streams, IP stream and/or normal flow are allowed to input simultaneously.
It is one or more data pipe that input format block 1000, which can demultiplex each inlet flow, to therein every
One application individually compiling and modulation.Data pipe (DP) is the basic unit for robust control, to influence Service Quality
It measures (QoS).One or more service or serviced component can be carried by single DP.Input format block will be described later
1000 details of operation.
Data pipe is the logic channel in the physical layer of carrying service data or relevant metadata, can be held
Carry one or more service or serviced component.
In addition, data pipe unit: for distributing cell of data to the basic unit of DP in frame.
In BICM block 1010, parity data is increased for error correction, and the bit stream encoded is mapped as again
Numerical value constellation symbol.The symbol is crossed over to be interleaved for the specific interleave depth of corresponding DP.For advanced profile, in BICM block
MIMO coding is executed in 1010, and other data path is added to output end for MIMO transmission.It later will description
The details of operation of BICM block 1010.
The cell of data for inputting DP can be mapped as the OFDM symbol in frame by frame structure block 1020.After mapping,
Frequency interlacing is used for frequency domain diversity, particularly, for resisting frequency selective fading channels.Frame structure block will be described later
1020 details of operation.
After the insertion of the beginning of each frame is leading, OFDM generates block 1030 and can protect using having cyclic prefix to be used as
The conventional OFDM modulation at shield interval.For antenna space diversity, DISTRIBUTED MIS O scheme is applied throughout transmitter.In addition,
Peak-toaverage power reduces (PAPR) scheme and executes in the time domain.For the flexible network planning, this suggests providing one
Group different FFT size, protection interval length and corresponding pilot frequency design.It is later that the operation for describing OFDM generation block 1030 is thin
Section.
Signaling, which generates block 1040, can create the physical layer signaling information operated for each functional block.The signaling information
It is sent so that interested service is recovered in receiver-side.It is later that the operation for describing signaling generation block 1040 is thin
Section.
The input format block 1000 of the diagram embodiment according to the present invention of Fig. 2,3 and 4.The description of each figure will be provided.
Fig. 2 illustrates input format block according to an embodiment of the invention.Fig. 2 shows be single defeated when input signal
Input format module when becoming a mandarin.
The input format block illustrated in Fig. 2 corresponds to the embodiment of the input format block 1000 with reference to Fig. 1 description.
Input to physical layer can be made of one or more data flow.Each data flow is carried by a DP.Mould
Input traffic slice (slice) is the data field of base band frame (BBF) by formula adaptation module.System supports the defeated of three types
Enter data flow: MPEG2-TS, Internet protocol (IP) and normal flow (GS).MPEG2-TS feature is regular length (188 byte)
Grouping, the first byte is sync byte (0x47).IP flows the variable-length IP number by being transmitted such as in IP packet header with signal
According to a group composition of calling the score.System, which flows IP, supports both IPv4 and IPv6.GS can be by being passed in encapsulating packets header with signal
Variable-length packets or the fixed length packets composition sent.
(a) the mode adaptation block 2000 and stream adaptation 2010 for signals DP are shown, and (b) shown for generating and locating
The PLS for managing PLS data generates block 2020 and PLS scrambler 2030.By the description for the operation for providing each piece.
Input flow splitter will input TS, IP, GS flow point and be segmented into multiple services or serviced component (audio, video etc.)
Stream.Mode adaptation module 2010 is made of CRC encoder, BB (base band) frame food slicer and BB frame header inserting block.
CRC encoder provides the CRC coding of the three types for error detection in user grouping (UP) rank, that is,
CRC-8, CRC-16 and CRC-32.The CRC byte of calculating is attached to after UP.CRC-8 is flowed for TS and CRC-32 is used for IP
Stream.If GS stream does not provide CRC coding, the proposed CRC of application is encoded.
Input is mapped to internal logic bit format by BB frame food slicer.Bit received first is defined as MSB.BB
The distribution of frame food slicer is equal to the number of the input bit of available data fields capacity.It is equal to the defeated of BBF payload to distribute
Enter the number of bit, UP stream of packets is sliced the data field to be suitble to BBF.
The regular length BBF header of 2 bytes can be inserted in front of BB frame by BB frame header insertion module.BBF report
Head is made of STUFFI (1 bit), SYNCD (13 bit) and RFU (2 bit).Other than 2 fixed byte BBF headers,
BBF can also have extended field (1 or 3 byte) in the end of 2 byte BBF headers.
Stream adaptation 2010 is made of filling inserting block and BB scrambler.
Filling field can be inserted into the payload of BB frame by filling inserting block.If to the input data of stream adaptation
Filling BB frame enough, then STUFFI is arranged to " 0 ", and BBF does not fill field.Otherwise, STUFFI is arranged to " 1 ",
And it fills after field is close in BBF header and is inserted into.Filling field includes the filling field header of two bytes and can be changed
The filling data of size.
The BBF that the scrambling of BB scrambler is completed is used for energy dissipation.Scramble sequence is synchronous with BBF.Scramble sequence is moved by feedback
Bit register generates.
PLS, which generates block 2020, can produce physical layer signaling (PLS) data.PLS provides access physical layer DP to receiver
Means.PLS data are made of PLS1 data and PLS2 data.
PLS1 data are the first group of PLS numbers for carrying, compiling and modulating in FSS symbol in the frame with fixed size
According to the essential information of system and parameter that carrying is needed in relation to decoding PLS2 data.It includes allowing PLS2 that PLS1 data, which provide,
The basic configured transmission for receiving the decode required parameter of data.In addition, PLS1 data are kept in the duration of frame group
It is constant.
PLS2 data are the second group of PLS data sent in FSS symbol, carry relationship system and DP in further detail
PLS data.PLS2 includes to decode desired DP to receiver to provide the parameter of enough information.PLS2 signaling is further by two
The parameter of seed type, PLS2 static data (PLS2-STAT data) and PLS2 dynamic data (PLS2-DYN data) composition.PLS2
Static data be keep static PLS2 data in the frame group duration, and PLS2 dynamic data be can dynamic change frame by frame
PLS2 data.
The details of PLS data will be described later.
PLS scrambler 2030 can scramble generated PLS data for energy dissipation.
Described above piece can be omitted, or be replaced by the block with similar or like function.
The input format block of Fig. 3 diagram according to another embodiment of the invention.
The input format block illustrated in Fig. 3 corresponds to the embodiment of the input format block 1000 with reference to Fig. 1 description.
Fig. 3 is shown when input signal corresponds to multiple inlet flows, the mode adaptation block of input format block.
Mode adaptation block for handling the input format block of multiple inlet flows can be independently processed from multiple inlet flows.
With reference to Fig. 3, the mode adaptation block for handling multiple inlet flows respectively may include input flow splitter 3000, defeated
Become a mandarin synchronizer 3010, compensation delay block 3020, space division group delete block 3030, header-compressed block 3040, CRC encoder 3050,
BB frame food slicer (slicer) 3060 and BB header inserting block 3070.The description of each of mode adaptation block piece will be provided.
The operation of CRC encoder 3050, BB frame food slicer 3060 and BB header inserting block 3070 corresponds to be described with reference to Fig. 2
CRC encoder, BB frame food slicer and BB header inserting block operation, and therefore, description is omitted.
Input flow splitter 3000 can will input TS, IP, GS flow point be segmented into it is multiple service or serviced component (audio,
Video etc.) stream.
Inlet flow synchronizer 3010 is properly termed as ISSY.ISSY can provide any input data format suitable hand
Section is to guarantee constant bit rate (CBR) and constant end-to-end transmission delay.ISSY is used to carry the situation of multiple DP of TS always,
And it is alternatively used for multiple DP of carrying GS stream.
Compensation delay block 3020 can postpone to divide TS stream of packets after the insertion of ISSY information, to allow TS grouping weight
Combination nova mechanism is without memory additional in the receiver.
Space division group deletes block 3030 and is only used for TS inlet flow situation.Some TS inlet flows or the TS stream of segmentation can have
A large amount of space division group exists, to provide VBR (variable bit-rate) service in CBR TS stream.In this case, in order to
Unnecessary transport overhead is avoided, space division group can be identified and not sent.In the receiver, by reference in the transmission
Space division group (DNP) counter of the deletion of insertion, the space division group of removal can be reinserted in their initial accurate positions
In, thus, guarantee constant bit-rate, and avoid the need for updating timestamp (PCR).
Header-compressed block 3040 can provide packet header compression to improve the efficiency of transmission for TS IP inlet flow.
Because receiver can have the prior information of some part of related header, this known information can be in transmitter
In be deleted.
For transport stream, receiver has the priori of related sync byte configuration (0x47) and block length (188 byte)
Information.If input TS stream carrying only with a PID content, that is, be only used for serviced component (video, audio etc.) or
Person's service sub-components (SVC Primary layer, SVC enhancement layer, MVC basic views or the relevant view of MVC), then TS packet header pressure
Contracting can (selectively) be applied to transport stream.If inlet flow is IP stream, selectively compressed using IP packet header.
Module described above can be omitted, or be replaced by the block with similar or like function.
The input format block of Fig. 4 diagram according to another embodiment of the invention.
The input format module illustrated in Fig. 4 corresponds to the implementation of the input format block 1000 with reference to Fig. 1 description
Example.
Fig. 4 diagram is when input signal corresponds to multiple inlet flows, the stream adaptation module of input format module.
With reference to Fig. 4, the mode adaptation module for handling multiple inlet flows respectively may include that scheduler 4000,1- frame prolong
Slow block 4010, filling inserting block 4020, in-band signaling 4030, BB frame scrambler 4040, PLS generate block 4050 and PLS scrambler
4060.The description of each of stream adaptation module piece will be provided.
The operation for filling inserting block 4020, BB frame scrambler 4040, PLS generation block 4050 and PLS scrambler 4060 is corresponding
The operation of block and PLS scrambler is generated in the filling inserting block of reference Fig. 2 description, BB scrambler, PLS, and therefore, description
It is omitted.
Scheduler 4000 can determine the whole cell point across entire frame from the amount of the FECBLOCK (FEC Block) of each DP
Match.Including the distribution for PLS, EAC and FIC, scheduler generates the value of PLS2-DYN data, by as the FSS in the frame
In PLS cell or in-band signaling send.The details of FECBLOCK, EAC and FIC will be described later.
1- frame delay block 4010 can be by a transmission frame delay input data, so that the scheduling in relation to next frame is believed
Breath can be sent via the present frame for in-band signalling information to be inserted into DP.
The non-decay part of PLS2 data can be inserted into the DP of frame by in-band signaling 4030.
Described above piece can be omitted, or be replaced by the block with similar or like function.
The BICM block of Fig. 5 diagram embodiment according to the present invention.
The BICM block illustrated in Fig. 5 corresponds to the embodiment of the BICM block 1010 with reference to Fig. 1 description.
As described above, the device that embodiment according to the present invention is used to send the broadcast singal of the broadcast service for future can
To provide terrestrial broadcast service, mobile broadcast service, UHDTV service etc..
Since QoS (service quality) is depended on by embodiment according to the present invention for sending for following broadcast service
Broadcast singal device provide service features, therefore correspond to respective service data need via different schemes at
Reason.Therefore, the BICM block of embodiment according to the present invention can be by the way that SISO, MISO and MIMO scheme to be applied independently for point
Not Dui Yingyu data path data pipe, be independently processed from the DP inputted to it.Therefore, the use of embodiment according to the present invention
It can control in sending the device for the broadcast singal of following broadcast service via each DP each service sent or clothes
The QoS of business component.
(a) the BICM block shared by basic profile and hand-held profile is shown, and the BICM mould of advanced profile (b) is shown
Block.
BICM block by basic profile and hand-held profile shared BICM block and advanced profile can include every for handling
Multiple process blocks of a DP.
It will be given for each processing of the BICM block and the BICM block for advanced profile of basic profile and hand-held profile
The description of module.
The process block 5000 of BICM block for basic profile and hand-held profile may include data FEC encoder 5010,
Bit interleaver 5020, constellation mapper 5030, SSD (signal space diversity) encoding block 5040 and time interleave 5050.
Data FEC encoder 5010 is able to use outer compiling (BCH) and interior compiling (LDPC) and executes FEC volume to input BBF
Code, to generate FECBLOCK process.Outer compiling (BCH) is selectable Compilation Method.Data FEC encoder will be described later
5010 details of operation.
Bit interleaver 5020 can be compiled defeated with the combination interleaving data FEC encoder 5010 of modulation scheme with LDPC
Out to realize the performance of optimization, while providing effectively executable structure.The operation of bit interleaver 5020 will be described later
Details.
QPSK, QAM-16, uneven QAM (NUQ-64, NUQ-256, NUQ-1024) can be used in constellation mapper 5030,
Or uneven constellation (NUC-16, NUC-64, NUC-256, NUC-1024), modulation comes from bit in basis and hand-held profile
Each cell word (cell word) of interleaver 5020, or from cell word demultiplexer 5010-1's in advanced profile
Cell word, to provide the constellation point el of power normalization.The constellation mapping is only applicable to DP.It is noted that QAM-16 and NUQ are just
Rectangular shape, and NUC has arbitrary shape.When each constellation rotates 90 degree of any multiple, the constellation of rotation is accurately
It is Chong Die with its original one.This " sense of rotation " symmetric properties makes the capacity of real and imaginary component and mean power be equal to each other.
For each encoding rate, both NUQ and NUC are specifically defined, and specific one used in PLS2 data by returning
The parameter DP_MOD of shelves is transmitted with signal.
SSD encoding block 5040 can be with two-dimentional (2D), three-dimensional (3D) and four-dimensional (4D) precoding cell to improve in difficulty
Fade condition under reception robustness.
Time interleave 5050 can be in DP level operations.The parameter of time-interleaved (TI) can be for each DP differently
Setting.The details of operation of time interleave 5050 will be described later.
The process block 5000-1 of BICM block for advanced profile may include data FEC encoder, bit interleaver, star
Seat mapper and time interleave.But it is different from process block 5000, processing module 5000-1 further comprises cell word solution
Multiplexer 5010-1 and MIMO coding module 5020-1.
In addition, data FEC encoder, bit interleaver, constellation mapper in process block 5000-1 and time-interleaved
Data FEC encoder 5010, bit interleaver 5020, constellation mapper 5030 and the time that the operation of device corresponds to description hand over
The operation of device 5050 is knitted, and therefore, description is omitted.
DP of the cell word demultiplexer 5010-1 for advanced profile is used at MIMO so that single cell word stream to be divided into
Double cell word streams of reason.The details of cell word demultiplexer 5010-1 operation will be described later.
The output of MIMO encoding scheme processing cell word demultiplexer 5010-1 can be used in MIMO coding module 5020-1.
MIMO encoding scheme transmits broadcast singal optimised.MIMO technology is to obtain the expectation mode that performance improves still to take
Certainly in channel characteristics.Particularly with broadcast, the strong LOS component of channel or as caused by different signal propagation characteristics
The difference of received signal power between two antennas makes it difficult to obtain performance gain from MIMO.The MIMO coding staff proposed
Case overcomes this problem using one of MIMO output signal precoding and phase randomization based on rotation.
MIMO coding is intended for needing the 2x2MIMO system of at least two antennas at both transmitter and receiver place.
Give a definition two MIMO coding modes in the suggestion: full rate spatial reuse (FR-SM) and Full-rate full-diversity spatial reuse
(FRFD-SM).FR-SM coding is increased with relatively small complexity at receiver-side provides performance raising, and FRFD-SM is encoded
Increased with complexity huge at receiver-side and performance raising and additional diversity gain are provided.The MIMO encoding scheme proposed
Antenna polarity configuration is not limited.
MIMO processing is needed advanced profile frame, refers to by MIMO coder processes in advanced profile frame
All DP.MIMO processing is applicable in DP rank.Constellation mapper is fed to MIMO coding to output NUQ (e1, i and e2, i)
The input of device.The MIMO encoder output (g1, i and g2, i) of pairing by its corresponding TX antenna identical carrier wave k and OFDM
Symbol l is sent.
Module described above can be omitted or be replaced by the module with similar or like function.
The BICM block of Fig. 6 diagram according to another embodiment of the invention.
The BICM block illustrated in Fig. 6 corresponds to the embodiment of the BICM block 1010 with reference to Fig. 1 description.
Fig. 6 is illustrated for protecting physical layer signaling (PLS), urgent warning channel (EAC) and fast information channel in dab receiver (FIC)
BICM block.EAC is the part for carrying the frame of EAS information data, and FIC is between the service that is carried on and corresponding basis DP
Map information frame in logic channel.The details of EAC and FIC will be described later.
It may include PLS FEC encoder 6000, bit friendship for protecting the BICM block of PLS, EAC and FIC with reference to Fig. 6
Knit device 6010 and constellation mapper 6020.
In addition, PLS FEC encoder 6000 may include scrambler, Bose-Chaudhuri-Hocquenghem Code/zero insertion block, LDPC encoding block and
Punctured piece of LDPC odd even.The description of each of BICM block piece will be provided.
PLS FEC encoder 6000 can encode scrambled 1/2 data of PLS, EAC and FIC section.
Scrambler can scramble PLS1 data and PLS2 data before Bose-Chaudhuri-Hocquenghem Code and shortening and punctured LDPC coding.
The BCH code of the shortening for PLS protection can be used in Bose-Chaudhuri-Hocquenghem Code/zero insertion block, to scrambled 1/2 data of PLS
Outer compiling is executed, and is inserted into zero bit after Bose-Chaudhuri-Hocquenghem Code.Only for PLS1 data, the output bit of zero insertion can be
Transposition before LDPC coding.
LDPC code can be used to encode the output of Bose-Chaudhuri-Hocquenghem Code/zero insertion block in LDPC encoding block.In order to generate complete volume
The block translated, Cldpc, Parity Check Bits, PldpcFrom the PLS block of information I of each zero insertionldpcBy system coding, and it is attached to it
Later.
Mathematical formulae 1
[mathematical expression 1]
LDPC coding parameter table 4 for example below for PLS1 and PLS2.
Table 4
[table 4]
Punctured piece of LDPC odd even can execute PLS1 data and 2 data of PLS punctured.
When shortening is applied to PLS1 data protection, some LDPC Parity Check Bits are deleted after LDPC coding
It is remaining.In addition, the LDPC Parity Check Bits of PLS2 are punctured after LDPC coding for PLS2 data protection.Do not send this
The bit being punctured a bit.
Bit interleaver 6010 can interweave each PLS1 data and PLS2 data for being shortened and being punctured.
1 data of PLS and PLS2 data of Bit Interleave can be mapped on constellation by constellation mapper 6020.
Described above piece can be omitted or be replaced by the block with similar or like function.
Fig. 7 illustrates frame structure block according to an embodiment of the invention.
The frame structure block illustrated in Fig. 7 corresponds to the embodiment of the frame structure block 1020 with reference to Fig. 1 description.
With reference to Fig. 7, frame structure block may include delay compensation block 7000, cell mapping device 7010 and frequency interleaver
7020.The description of each of frame structure block piece will be provided.
The adjustable timing between data pipe and corresponding PLS data of delay compensation block 7000 with ensure they
Emitter terminals are synchronic (co-timed).By solving the delay of the data pipe as caused by input format block and BICM block,
PLS data are delayed by amount identical with data pipe.The delay of BICM block is mainly due to time interleave.In-band signaling data
The information of next TI group is carried, so that they carry a frame before the DP transmitted with signal.Accordingly, delay compensation block
Postpone in-band signaling data.
Cell mapping device 7010 can be by PLS, EAC, FIC, DP, auxiliary flow and mute cell mapping to OFDM in the frame
The active carriers of symbol.The basic function of cell mapping device 7010 is, if any, will for DP, PLS cell and
Each of EAC/FIC cell is mapped to corresponding with each in the OFDM symbol in frame by the cell of data that TI is generated
Movable OFDM cell.Service signaling data (such as PSI (Program Specific Information)/SI) can be collected separately and pass through
Data pipe is sent.Cell mapping device is operated according to the configuration of the multidate information and frame structure that are generated by scheduler.It will retouch later
State the details of the frame.
Frequency interleaver 7020 can randomly interweave from the received cell of data of cell mapping device 7010 to provide frequency
Diversity.In addition, different intertexture seed sequences can be used in frequency interleaver 7020, to by two in-order OFDM symbol groups
At distinctive OFDM symbol to operating, to obtain the maximum interleaving gain in single frame.Frequency will be described later
The description of the operation of interleaver 7020.
Described above piece can be omitted or be replaced by the block with similar or like function.
The OFDM that Fig. 8 illustrates embodiment according to the present invention generates block.
The OFDM illustrated in fig. 8 generates block and corresponds to the embodiment for generating block 1030 with reference to the OFDM of Fig. 1 description.
OFDM generates block and modulates OFDM carrier wave by the cell generated by frame structure block, is inserted into pilot tone, and generate and be used for
The time-domain signal of transmission.In addition, this block is subsequently inserted into protection interval, and application PAPR (peak-to-average power ratio) reduction is handled
To generate final RF signal.
With reference to Fig. 8, frame structure block may include pilot tone and reservation sound inserting block 8000,2D-eSFN encoding block 8010, IFFT
(inverse fast Fourier transform) block 8020, PAPR reduce block 8030, protection interval inserting block 8040, preamble insertion module 8050,
Other systems inserting block 8060 and DAC block 8070.The description of each of frame structure block piece will be provided.
Pilot tone and reservation sound inserting block 8000 can be inserted pilot tone and retain sound.
Various cells in OFDM symbol are had in the receiver previously by the reference information modulation with referred to as pilot tone
Known sending value.The information of pilot cell by scatter pilot, CP continuous pilot, edge pilot, FSS (frame signaling symbols) pilot tone and
FES (frame border symbol) pilot tone composition.Each pilot tone is according to pilot type and pilot frequency design with specific hoisting power level quilt
It sends.The value of pilot frequency information is derived from reference sequences, is a series of value, one is used in any given symbol
The carrier wave sent each of on number.Pilot tone can be used for frame synchronization, Frequency Synchronization, time synchronization, channel estimation and transmission mould
Formula identification, and can also be used to follow phase noise.
It is being dissipated in each symbol other than the leading of frame, FSS and FES from the reference information extracted in reference sequences
It is sent in the pilot cell of cloth.Continuous pilot tone is inserted in each symbol of frame.The number of continuous pilot tone and position take
Certainly in both FFT size and the pilot frequency design of distribution.Edge carrier is the edge in each symbol in addition to leading symbol
Pilot tone.They are inserted for allowing Interpolation across frequency the edge until frequency spectrum.FSS pilot tone is inserted in FSS, and FES is led
Frequency is inserted in FES.They are inserted for allowing temporal interpolation the edge until frame.
The system of embodiment according to the present invention supports SFN network, and DISTRIBUTED MIS O scheme is selectively used for here
Support very Robust Transmission mode.2D-eSFN is the DISTRIBUTED MIS O scheme using multiple TX antennas, each of which is in SFN network
In be located at different emitter positions.
2D-eSFN encoding block 8010 can handle 2D-eSFN and handle the phase so that the signal sent from multiple transmitters
Distortion, so as to both creation time and frequency diversity in SFN is configured.Therefore, can mitigate due to low flat fading or
For burst error caused by prolonged deep fade.
Output of the OFDM modulation scheme modulation from 2D-eSFN encoding block 8010 can be used in IFFT block 8020.Do not having
It is appointed as one of cell of data of any cell carrying from frequency interleaver in the data symbol of pilot tone (or retaining sound)
It is a.The cell is mapped to OFDM carrier wave.
PAPR, which reduces block 8030, can be used the reduction algorithm of various PAPR in the time domain to input signal execution PAPR
It reduces.
Protection interval can be inserted in protection interval inserting block 8040, and leading inserting block 8050 can be before the signal
Face insertion is leading.The details of leading structure will be described later.Another system inserting block 8060 can be multiplexed in the time domain
Multiple broadcast transmissions/reception system signal, so that providing two or more different broadcast transmission/receptions of broadcast service
The data of system can be sent simultaneously in identical RF signal bandwidth.In this case, two or more are different wide
Transmitting/receiving system is broadcast to refer to providing the system of different broadcast services.Different broadcast services also refer to terrestrial broadcast clothes
Business, mobile broadcast service etc..Data relevant with corresponding broadcast service can be sent via different frames.
Input digital signal can be converted to analog signal by DAC block 8070, and export the analog signal.From DAC block
The signal of 7800 outputs can be sent according to physical layer profile via multiple output antennas.Tx days of embodiment according to the present invention
Line can have either vertically or horizontally polarity.
Described above piece can be omitted or be replaced according to design by the block with similar or like function.
The knot of the broadcast singal device for receiving the broadcast service for future of Fig. 9 diagram embodiment according to the present invention
Structure.
The device of the broadcast singal for receiving the broadcast service for future of embodiment according to the present invention can correspond to
In reference Fig. 1 description for sending the device of the broadcast singal for following broadcast service.
The device of broadcast singal for receiving for the broadcast service in future of embodiment according to the present invention may include
Synchronous and demodulation module 9000, frame parsing module 9010, demapping and decoder module 9020, output processor 9030 and signaling solution
Code module 9040.It will be given for receiving the description of the operation of each module of broadcast singal device.
Synchronization and demodulation module 9000 can receive input signal via m Rx antenna, broadcast relative to for receiving
The corresponding system of the device of signal execute signal detection with it is synchronous, and execute with by being executed for sending broadcast singal device
The corresponding demodulation of process inverse process.
Frame parsing module 9100 can parse input signal frame, and extracts and send service selected by user via it
Data.If the device for sending broadcast singal executes intertexture, frame parsing module 9100 can execute opposite with what is interweaved
The corresponding deinterleaving of process.In this case it is necessary to which the position of the signal and data that extract can be by decoding from signaling
The data that decoder module 9400 exports obtain, to restore the scheduling information generated by the device for sending broadcast singal.
Input signal can be converted to bit numeric field data by demapping and decoder module 9200, and then right as needed
It is deinterleaved.Demapping and decoder module 9200 can execute demapping for the mapping applied for efficiency of transmission, and pass through
The mistake generated on transport channels by decoding correction.In this case, demapping and decoder module 9200 can be
Configured transmission necessary to demapping, and be decoded by decoding from the data that signaling decoding module 9400 exports.
Output processor 9300, which can be executed, to be applied by the device for sending broadcast singal to improve each of efficiency of transmission
Kind compression/signal processing inverse process.In this case, output processor 9300 can be from signaling decoding module
Necessary control information is obtained in the data of 9400 outputs.The output of output processor 8300, which corresponds to, to be input to for sending extensively
The signal of signal device is broadcast, and can be MPEG-TS, IP stream (v4 or v6) and normal flow.
Signaling decoding module 9400 can obtain PLS information from the signal demodulated by synchronous and demodulation module 9000.Such as
Upper described, frame parsing module 9100, demapping and decoder module 9200 and output processor 9300 can be used from signaling decoding
The data that module 9400 exports execute its function.
Figure 10 illustrates frame structure according to an embodiment of the invention.
Figure 10 shows the example arrangement and FRU in superframes of frame type, and (a) shows the super of embodiment according to the present invention
Frame (b) shows the FRU (frame repetitive unit) of embodiment according to the present invention, (c) shows the variable PHY profile in FRU
Frame, and the structure of frame (d) is shown.
Superframe can be made of eight FRU.FRU is the basic Multiplexing Unit of the TDM for frame, and is weighed in superframes
It is eight times multiple.
Each frame in FRU belongs to one or FEF in PHY profile (basic, hand-held, advanced).The frame in FRU
Maximum number allowed is four, and given PHY profile can occur in FRU (for example, basic, hand-held, advanced) from zero
Secondary to four times any numbers.If necessary, PHY profile defines the reservation that can be used in leading middle PHY_PROFILE
Value extension.
FEF is partially inserted into the end of FRU, if including.When FEF includes in FRU, FEF in superframes
Minimum number be 8.Do not recommend the part FEF mutually adjacent.
One frame is further divided into many OFDM symbol and leading.As shown in (d), frame include it is leading, one or
Multiple frame signaling symbols (FSS), general data symbol and frame border symbol (FES).
Leading is the effective hair for allowing quick Futurecast UTB system signal to detect and providing one group for signal
Send the additional character with received basic configured transmission.Leading detailed description will be described later.
The main purpose of FSS is carrying PLS data.For Fast synchronization and channel estimation and therefore PLS data
Quickly decoding, FSS have the pilot frequency design of the more crypto set than general data symbol.FES has the pilot tone exactly the same with FSS,
It allows the only Interpolation across frequency in FES, and for the temporal interpolation close to the symbol before FES without extrapolation.
Figure 11 illustrates the signaling layered structure of the frame of embodiment according to the present invention.
Figure 11 illustrates signaling layered structure, is divided into three major parts: leading signaling data 11000, PLS1 number
According to 11010 and PLS2 data 11020.Leading purpose by leading symbol carrying in each frame is to indicate the transmission of the frame
Type and basic configured transmission.PLS1 allows receiver to access and decode PLS2 data, and it includes the ginsengs for accessing interested DP
Number.PLS2 is carried in each frame, and is divided into two major parts: PLS2-STAT data and PLS2-DYN data.It must
It is filling after the static state and dynamic part of PLS2 data when wanting.
The leading signaling data of Figure 12 diagram embodiment according to the present invention.
Leading signaling data bearing needs to allow the 21 bits letter of receiver access PLS data and the tracking DP in frame structure
Breath.The details of leading signaling data is as follows:
PHY_PROFILE: the PHY ProfileType of 3 bit field instruction present frame.Different PHY ProfileTypes reflects
It penetrates in table 5 below and provides.
Table 5
[table 5]
| Value | PHY profile |
| 000 | Basic profile |
| 001 | Hand-held profile |
| 010 | Advanced profile |
| 011~110 | Retain |
| 111 | FEF |
FFT_SIZE: the FFT size of 2 bit field instruction present frame in frame group such as describes in table 6 below
's.
Table 6
[table 6]
| Value | FFT size |
| 00 | 8K FFT |
| 01 | 16K FFT |
| 10 | 32K FFT |
| 11 | Retain |
GI_FRACTION: the protection interval fractional value of 3 bit field instruction in the current superframe, such as in table 7 below
Described in.
Table 7
[table 7]
| Value | GI_FRACTION |
| 000 | 1/5 |
| 001 | 1/10 |
| 010 | 1/20 |
| 011 | 1/40 |
| 100 | 1/80 |
| 101 | 1/160 |
| 110~111 | Retain |
EAC_FLAG: whether 1 bit field instruction provides EAC in the current frame.If the field is arranged to " 1 ",
Then provide urgent warning service (EAS) in the current frame.If the field is arranged to " 0 ", do not carry in the current frame
EAS.The field can dynamically switch in superframe.
PILOT_MODE: 1 bit field instruction for the present frame pilot frequency design in present frame group be Move Mode also
It is fixed mode.If the field is arranged to " 0 ", mobile pilot frequency design is used.If the field is arranged to " 1 ",
Use fixed pilot frequency design.
PAPR_FLAG: whether 1 bit field instruction reduces using PAPR the present frame in present frame group.If
The field is arranged to value " 1 ", then sound reservation is used for PAPR reduction.If the field is arranged to " 0 ", PAPR is not used
It reduces.
FRU_CONFIGURE: 3 bit field instruction is present in the PHY of the frame repetitive unit (FRU) among current super frame
ProfileType configuration.In the current superframe it is all it is leading in, identify all letters transmitted in the current superframe in the field
Shelves type.3 bit fields have different definition for each profile, as shown in table 8 below.
Table 8
[table 8]
RESERVED: this 7 bit field retains to be used for future.
The PLS1 data of Figure 13 diagram embodiment according to the present invention.
It includes the basic configured transmission for receiving the decode required parameter for allowing PLS2 that PLS1 data, which provide,.As mentioned above
And, PLS1 data remain unchanged the entire duration of a frame group.The specific definition of the signaling field of PLS1 data
It is as follows:
PREAMBLE_DATA: 20 bit field is the copy for removing the leading signaling data of EAC_FLAG.
NUM_FRAME_FRU: 2 bit field indicates the number of the frame of every FRU.
PAYLOAD_TYPE: the format for the payload data that 3 bit field instruction carries in frame group.PAYLOAD_
TYPE is transmitted with signal as shown in table 9.
Table 9
[table 9]
| Value | PT Payload Type |
| 1XX | Send TS stream |
| X1X | Send IP stream |
| XX1 | Send GS stream |
NUM_FSS: 2 bit field indicates the number of FSS symbol in the current frame.
SYSTEM_VERSION: the version of the transmitted signal format of 8 bit field instruction.SYSTEM_VERSION quilt
Two 4 bit fields are divided into, are main version and minor release.
Main version: tetra- bit byte of MSB of SYSTEM_VERSION field indicates main version information.In main version
Variation in field indicates the variation of non-backward compatible.Default value is " 0000 ".It, should for the version described under this standard
Value is arranged to " 0000 ".
Minor release: tetra- bit byte of LSB of SYSTEM_VERSION field indicates minor release information.In minor release
Variation in field is backward compatibility.
CELL_ID: this is 16 bit fields that geographic cell is uniquely identified in ATSC network.Depending on every
The number for the frequency that Futurecast UTB system uses, the cell footprint ATSC can be made of one or more frequencies.Such as
The value of fruit CELL_ID be not it is known or unspecified, then the field is arranged to " 0 ".
NETWORK_ID: this is 16 bit fields for uniquely identifying current ATSC network.
SYSTEM_ID: this 16 bit field uniquely identifies the Futurecast UTB system in ATSC network.
Futurecast UTB system is terrestrial broadcast systems, and input is one or more inlet flows (TS, IP, GS), and its is defeated
It is RF signal out.If any, Futurecast UTB system bearing one or more PHY profile and FEF.It is identical
Futurecast UTB system can carry different inlet flows, and different RF frequencies is used in different geographic regions,
Local service is allowed to be inserted into.Frame structure and scheduling are controlled in one location, and in Futurecast UTB system
Interior all transmission are identical.One or more Futurecast UTB systems can have identical SYSTEM_ID meaning,
That is, all of which physical layer architecture having the same and configuration.
Subsequent loop by FRU_PHY_PROFILE, FRU_FRAME_LENGTH, FRU_Gl_FRACTION and
RESERVED composition, is used to indicate the length of FRU configuration and each frame type.Loop size be it is fixed so that four PHY
Profile (including FEF) is transmitted in FRU with signal.If NUM_FRAME_FRU is less than 4, not used field zero padding
It fills.
FRU_PHY_PROFILE: this 3 bit field indicates (i+1) (i is that strop draws) a frame of relevant FRU
PHY ProfileType.This field uses identical signaling format as shown in table 8.
FRU_FRAME_LENGTH: this 2 bit field indicates the length of (i+1) a frame of associated FRU.With
FRU_GI_FRACTION is used together FRU_FRAME_LENGTH, can obtain the exact value of frame duration.
FRU_GI_FRACTION: this 3 bit field indicates the protection interval point of (i+1) a frame of associated FRU
Numerical value.FRU_GI_FRACTION is transmitted according to table 7 with signal.
RESERVED: this 4 bit field retains to be used for future.
Field below provides the parameter for decoding PLS2 data.
PLS2_FEC_TYPE: this 2 bit field indicates to protect the FEC type used by PLS2.FEC type is according to table
10 are transmitted with signal.The details of LDPC code will be described later.
Table 10
[table 10]
| Content | PLS2FEC type |
| 00 | 4K-1/4 and 7K-3/10LDPC code |
| 01~11 | Retain |
PLS2_MOD: this 3 bit field indicates the modulation type used by PLS2.Modulation type is according to table 11 by with letter
Number transmission.
Table 11
[table 11]
| Value | PLS2_MODE |
| 000 | BPSK |
| 001 | QPSK |
| 010 | QAM-16 |
| 011 | NUQ-64 |
| 100~111 | Retain |
PLS2_SIZE_CELL: this 15 bit field indicates Ctotal_partial_block, for being carried in present frame group
PLS2 the block compiled entirely aggregation size (number for being appointed as QAM cell).This value is entirely held present frame group
It is constant during the continuous time.
PLS2_STAT_SIZE_BIT: this 14 bit field indicates the PLS2-STAT's for present frame group with bit
Size.This value is constant during the entire duration of present frame group.
PLS2_DYN_SIZE_BIT: this 14 bit field indicates that the PLS2-DYN's for present frame group is big with bit
It is small.This value is constant during the entire duration of present frame group.
PLS2_REP_FLAG: this 1 bit labeling indicates whether to use PLS2 repeat pattern in present frame group.When this
When a field is arranged to value " 1 ", PLS2 repeat pattern is activated.When this field is arranged to value " 0 ", PLS2 repeats mould
Formula is disabled.
PLS2_REP_SIZE_CELL: when being repeated using PLS2, this 15 bit field indicates Ctotal_partial_blook,
The size of the aggregation of the block of the partial compilation of PLS2 for carrying in each frame of present frame group (is appointed as QAM cell
Number).If the value of this field is equal to 0 without using repeating.This value is during the entire duration of present frame group
Constant.
PLS2_NEXT_FEC_TYPE: this 2 bit field is indicated for carrying in each frame of next frame group
The FEC type of PLS2.FEC type is transmitted according to table 10 with signal.
PLS2_NEXT_MOD: this 3 bit field indicates the PLS2's for carrying in each frame of next frame group
Modulation type.Modulation type is transmitted according to table 11 with signal.
PLS2_NEXT_REP_FLAG: this 1 bit labeling indicates whether to repeat mould using PLS2 in next frame group
Formula.When this field is arranged to value " 1 ", PLS2 repeat pattern is activated.When this field is arranged to value " 0 ",
PLS2 repeat pattern is disabled.
PLS2_NEXT_REP_SIZE_CELL: when being repeated using PLS2, this 15 bit field is indicated
Ctotal_partial_blook, the size of the aggregation for the block of the PLS2 for being carried in each frame of next frame group compiled entirely
(number for being appointed as QAM cell).If without using repetition in next frame group, the value of this field is equal to 0.This value
It is constant during the entire duration of present frame group.
PLS2_NEXT_REP_STAT_SIZE_BIT: this 14 bit field is indicated with bit for next frame group
The size of PLS2-STAT.This value is constant in present frame group.
PLS2_NEXT_REP_DYN_SIZE_BIT: this 14 bit field is indicated with bit for next frame group
The size of PLS2-DYN.This value is constant in present frame group.
PLS2_AP_MODE: this 2 bit field indicates whether to provide additional odd even school in present frame group for PLS2
It tests.This value is constant during the entire duration of present frame group.Table 12 below provides the value of this field.When this
When a field is arranged to " 00 ", other even-odd check is not used for the PLS2 in present frame group.
Table 12
[table 12]
| Value | PLS2-AP mode |
| 00 | AP is not provided |
| 01 | AP1 mode |
| 10~11 | Retain |
PLS2_AP_SIZE_CELL: this 15 bit field indicates that the size of the additional Parity Check Bits of PLS2 (refers to
It is set to the number of QAM cell).This value is constant during the entire duration of present frame group.
PLS2_NEXT_AP_MODE: this 2 bit field indicates whether to believe in each frame of next frame group for PLS2
It enables and additional even-odd check is provided.This value is constant during the entire duration of present frame group.Table 12 defines this
The value of field.
PLS2_NEXT_AP_SIZE_CELL: this 15 bit field indicates the PLS2 in each frame of next frame group
The size (number for being appointed as QAM cell) of additional Parity Check Bits.Entire duration of this value in present frame group
Period is constant.
RESERVED: this 32 bit field is reserved for using in the future.
CRC_32:32 bit-errors detection code is applied to entire PLS1 signaling.
The PLS2 data of Figure 14 diagram embodiment according to the present invention.
The PLS2-STAT data of Figure 14 diagram PLS2 data.PLS2-STAT data are identical, and PLS2- in frame group
DYN data provide information specific for present frame.
The details of the field of PLS2-STAT data is as follows:
FIC_FLAG: this 1 bit field indicates whether to use FIC in present frame group.If this field is set
For " 1 ", then FIC is provided in the current frame.If this field is arranged to " 0 ", FIC is not carried in the current frame.This
Value is constant during the entire duration of present frame group.
AUX_FLAG: this 1 bit field indicates whether to use auxiliary flow in present frame group.If this field is set
It is set to " 1 ", then auxiliary flow is provided in the current frame.If this field is arranged to " 0 ", auxiliary is not carried in the current frame
Stream.This value is constant during the entire duration of present frame group.
NUM_DP: this 6 bit field indicates the number of the DP carried in present frame.The value of this field is from 1 to 64
Range, and the number of DP is NUM_DP+1.
DP_ID: this 6 bit field uniquely identifies the DP in PHY profile.
DP_TYPE: the type of this 3 bit field expression DP.These are transmitted according to table 13 below with signal.
Table 13
[table 13]
| Value | DP type |
| 000 | DP Class1 |
| 001 | DP type 2 |
| 010~111 | Retain |
DP_GROUP_ID: this 8 bit field identifies current DP DP group associated there.This can be made by receiver
To access the DP of serviced component related with special services, by DP_GROUP_ID having the same.
BASE_DP_ID: (such as, the expression of this 6 bit field is carried on service signaling data used in management level
PSI/SI DP).The DP indicated by BASE_DP_ID can be either in company with service data together carrying service signaling data
Common DP, or the only dedicated DP of carrying service signaling data.
DP_FEC_TYPE: this 2 bit field indicates the FEC type used by associated DP.FEC type according to
Under table 14 transmitted with signal.
Table 14
[table 14]
| Value | FEC_TYPE |
| 00 | 16K LDPC |
| 01 | 64K LDPC |
| 10~11 | Retain |
DP_COD: this 4 bit field indicates the encoding rate used by associated DP.Encoding rate is according to table 15 below
It is transmitted with signal.
Table 15
[table 15]
| Value | Encoding rate |
| 0000 | 5/15 |
| 0001 | 6/15 |
| 0010 | 7/15 |
| 0011 | 8/15 |
| 0100 | 9/15 |
| 0101~1111 | 10/15 |
| 0110 | 11/15 |
| 0111 | 12/15 |
| 1000 | 13/15 |
| 1001~1111 | Retain |
DP_MOD: this 4 bit field indicates the modulation used by associated DP.Modulation according to table 16 below by with
Signal transmission.
Table 16
[table 16]
| Value | Modulation |
| 0000 | QPSK |
| 0001 | QAM-16 |
| 0010 | NUQ-64 |
| 0011 | NUQ-256 |
| 0100 | NUQ-1024 |
| 0101 | NUC-16 |
| 0110 | NUC-64 |
| 0111 | NUC-256 |
| 1000 | NUC-1024 |
| 1001~1111 | Retain |
DP_SSD_FLAG: this 1 bit field indicates whether to use SSD mode in associated DP.If this word
Section is arranged to value " 1 ", then uses SSD.If this field is arranged to value " 0 ", SSD is not used.
Only when PHY_PROFILE is equal to " 010 ", indicates advanced profile, field below occurs:
DP_MIMO: this 3 bit field indicates that the MIMO cataloged procedure of which type is applied to associated DP.
The type of MIMO cataloged procedure is transmitted according to table 17 with signal.
Table 17
[table 17]
| Value | MIMO coding |
| 000 | FR-SM |
| 001 | FRFD-SM |
| 010~111 | Retain |
DP_TI_TYPE: this 1 bit field indicates time-interleaved type.Being worth " 0 " indicates that a TI group corresponds to one
A frame, and include one or more TI blocks.Value " 1 " indicates that a TI group is carried in more than one frame, and only includes
One TI block.
DP_TI_LENGTH: the use of this 2 bit field (permissible value is only 1,2,4,8) passes through in DP_TI_TYPE word
Value set determination in section is as follows:
If DP_TI_TYPE is arranged to value " 1 ", this field indicates PI, the number for the frame that each TI group is mapped to
Mesh, and there are a TI blocks (NTI=1) for each TI group.The PI value with 2 bit fields being allowed to is by table 18 below
Middle definition.
If DP_TI_TYPE is arranged to value " 0 ", this field indicates the number of the TI block NTI of each TI group, and
And there are a TI groups for each frame (PI=1).The PI value of permission with 2 bit fields is defined in table 18 below.
Table 18
[table 18]
| 2 bit fields | PI | NTI |
| 00 | 1 | 1 |
| 01 | 2 | 2 |
| 10 | 4 | 3 |
| 11 | 8 | 4 |
DP_FRAME_INTERVAL: this 2 bit field indicates the frame period in the frame group for associated DP
(IJUMP), and the value of permission is 1,2,4,8 (corresponding 2 bit field is respectively " 00 ", " 01 ", " 10 " or " 11 ").
The DP that each frame for the frame group is not in, the value of this field are equal to interval between successive frames.For example, if
DP is appeared on frame 1,5,9,13 etc., then this field is arranged to " 4 ".For the DP occurred in each frame, this field
It is arranged to " 1 ".
DP_TI_BYPASS: this 1 bit field determines the availability of time interleave.If do not used for DP
Between interweave, then it is arranged to " 1 ".And if being arranged to " 0 " using time-interleaved.
DP_FIRST_FRAME_IDX: this 5 bit field indicates current DP, and there are the ropes of the first frame of superframe therein
Draw.Range of the value of DP_FIRST_FRAME_IDX from 0 to 31.
DP_NUM_BLOCK_MAX: this 10 bit field indicates the maximum value of the DP_NUM_BLOCKS for this DP.
The value of this field has range identical with DP_NUM_BLOCKS.
DP_PAYLOAD_TYPE: this 2 bit field indicates the type of the payload data by given DP carrying.
DP_PAYLOAD_TYPE is transmitted according to table 19 below with signal.
Table 19
[table 19]
| Value | PT Payload Type |
| 00 | TS |
| 01 | IP |
| 10 | GS |
| 11 | Retain |
DP_INBAND_MODE: this 2 bit field indicates whether current DP carrying in-band signalling information.In-band signaling class
Type is transmitted according to table 20 below with signal.
Table 20
[table 20]
| Value | Band internal schema |
| 00 | Do not carry in-band signaling |
| 01 | Only PLS in carrying belt |
| 10 | Only ISSY in carrying belt |
| 11 | PLS and with interior ISSY in carrying belt |
DP_PROTOCOL_TYPE: this 2 bit field indicates the protocol type of the payload by given DP carrying.
When selection inputs PT Payload Type, transmitted according to table 21 below with signal.
Table 21
[table 21]
DP_CRC_MODE: whether the expression of this 2 bit field is encoded in input format block using CRC.CRC pattern
It is transmitted according to table 22 below with signal.
Table 22
[table 22]
| Value | CRC pattern |
| 00 | It is not used |
| 01 | CRC-8 |
| 10 | CRC-16 |
| 11 | CRC-32 |
DNP_MODE: this 2 bit field is indicated when DP_PAYLOAD_TYPE is arranged to (" 00 ") TS by being associated
The space division group puncturing pattern that uses of DP.DNP_MODE is transmitted according to table 23 below with signal.If DP_PAYLOAD_
TYPE is not (" 00 ") TS, then DNP_MODE is arranged to value " 00 ".
Table 23
[table 23]
| Value | Space division group puncturing pattern |
| 00 | It is not used |
| 01 | DNP standard |
| 10 | DNP offset |
| 11 | Retain |
ISSY_MODE: this 2 bit field is indicated when DP_PAYLOAD_TYPE is arranged to (" 00 ") TS by correlation
The ISSY mode that the DP of connection is used.ISSY_MODE is transmitted according to table 24 below with signal.If DP_PAYLOAD_TYPE
It is not (" 00 ") TS, then ISSY_MODE is arranged to value " 00 ".
Table 24
[table 24]
| Value | ISSY mode |
| 00 | It is not used |
| 01 | ISSY-UP |
| 10 | ISSY-BBF |
| 11 | Retain |
HC_MODE_TS: this 2 bit field is indicated when DP_PAYLOAD_TYPE is arranged to (" 00 ") TS by correlation
The TS header-compressed mode that the DP of connection is used.HC_MODE_TS is transmitted according to table 25 below with signal.
Table 25
[table 25]
| Value | Header-compressed mode |
| 00 | HC_MODE_TS 1 |
| 01 | HC_MODE_TS 2 |
| 10 | HC_MODE_TS 3 |
| 11 | HC_MODE_TS 4 |
HC_MODE_IP: this 2 bit field indicates the IP report when DP_PAYLOAD_TYPE is arranged to (" 01 ") IP
Head compact model.HC_MODE_IP is transmitted according to table 26 below with signal.
Table 26
[table 26]
| Value | Header-compressed mode |
| 00 | Without compression |
| 01 | HC_MODE_IP 1 |
| 10~11 | Retain |
PID: this 13 bit field indicates to be arranged to TS (" 00 ") as DP_PAYLOAD_TYPE, and HC_MODE_
When TS is arranged to " 01 " or " 10 ", the PID for TS header-compressed is numbered.
RESERVED: this 8 bit field retains to be used for future.
Only there is field below when FIC_FLAG is equal to " 1 ":
FIC_VERSION: the version number of this 8 bit field expression FIC.
FIC_LENGTH_BYTE: this 13 bit field is with the length of byte representation FIC.
RESERVED: this 8 bit field retains to be used for future.
Only there is field below when AUX_FLAG is equal to " 1 ":
NUM_AUX: the number of this 4 bit field expression auxiliary flow.Zero indicates not using auxiliary flow.
AUX_CONFIG_RFU: this 8 bit field is reserved for using in the future.
AUX_STREAM_TYPE: this 4 bit is reserved for using in the future, for indicating the type of current auxiliary flow.
AUX_PRIVATE_CONFIG: this 28 bit field is reserved in the future for transmitting auxiliary flow with signal.
The PLS2 data of Figure 15 diagram according to another embodiment of the invention.
The PLS2-DYN data of Figure 15 diagram PLS2 data.The value of PLS2-DYN data can frame group it is lasting when
Between during variation, and the size of field is kept constant.
The field details of PLS2-DYN data is as follows:
FRAME_INDEX: this 5 bit field indicates the frame index of the present frame in superframe.The first frame of the superframe
Index is arranged to " 0 ".
PLS_CHANGE_COUTER: this 4 bit field indicates configuration by the number of the front superframe of variation.In configuration
Modified next superframe in this field with the value that signal transmits by being indicated.If this field is arranged to be worth
" 0000 ", then this means that the variation that precognition is not dispatched: for example, value " 1 " indicates there is variation in the next superframe.
FIC_CHANGE_COUNTER: this 4 bit field indicates that wherein configuration (that is, content of FIC) will be before variation
The number of square superframe.Modified next superframe in this field with the value that signal transmits by being indicated in configuration.If
This field is arranged to value " 0000 ", then this means that the variation that precognition is not dispatched: for example, value " 0001 " is indicated next
There is variation in a superframe.
RESERVED: this 16 bit field is reserved for using in the future.
Occur field below in loop on NUM_DP, describes ginseng associated with the DP carried in the current frame
Number.
DP_ID: this 6 bit field uniquely indicates the DP in PHY profile.
DP_START: this 15 bit (or 13 bits) field indicates the beginning of first DP using DPU addressing scheme
Position.DP_START field has different length according to the PHY profile as shown in table 27 below and FFT size.
Table 27
[table 27]
DP_NUM_BLOCK: this 10 bit field indicates the number of the FEC Block in the current TI group for current DP.
Range of the value of DP_NUM_BLOCK from 0 to 1023.
RESERVED: this 8 bit field retains to be used for future.
Field below indicates FIC parameter associated with EAC.
EAC_FLAG: this 1 bit field indicates the presence of EAC in the current frame.This bit be in leading with
The identical value of EAC_FLAG.
EAS_WAKE_UP_VERSION_NUM: this 8 bit field indicates to wake up the version number of instruction.
If EAC_FLAG field is equal to " 1 ", 12 subsequent bits are allocated for EAC_LENGTH_BYTE field.Such as
Fruit EAC_FLAG field is equal to " 0 ", then 12 subsequent bits are allocated for EAC_COUNTER.
EAC_LENGTH_BYTE: this 12 bit field is with the length of byte representation EAC.
EAC_COUNTER: this 12 bit field indicates the number in the previous frame of the EAC frame arrived at.
Only there is field below when AUX_FLAG field is equal to " 1 ":
AUX_PRIVATE_DYN: this 48 bit field is reserved in the future for transmitting auxiliary flow with signal.This word
The meaning of section depends on the value of the AUX_STREAM_TYPE in configurable PLS2-STAT.
CRC_32:32 bit-errors detection code, is applied to entire PLS2.
Figure 16 illustrates the logical construction of the frame of embodiment according to the present invention.
As mentioned above, PLS, EAC, FIC, DP, auxiliary flow and mute cell are mapped to the work of the OFDM symbol in frame
Dynamic load wave.PLS1 and PLS2 is first mapped to one or more FSS.Then, after PLS field, EAC cell, if
It if having, is directly mapped, followed by FIC cell, if any.After PLS or EAC, FIC, following DP
It is mapped, if any.Class1 DP is followed first, and next type 2DP.The type details of DP will be described later.?
Under some cases, DP can carry some specific data or service signaling data for EAS.If any, it assists
Stream follows DP, followed by mute cell.According to above-mentioned sequence, that is, PLS, EAC, FIC, DP, auxiliary flow and dummy data letter
Member maps them together, accurately fills cell capacity in the frame.
Figure 17 illustrates the PLS mapping of embodiment according to the present invention.
PLS cell is mapped to the active carriers of FSS.Number depending on the cell occupied by PLS, one or more symbol
Number it is designated as FSS, and the number N FSS of FSS is transmitted by the NUM_FSS in PLS1 with signal.FSS is for carrying PLS
The additional character of cell.Since robustness and delay are important problem in PLS, so FSS, which has, allows Fast synchronization
High density pilot tone and the only Interpolation across frequency in FSS.
PLS cell is mapped to the active carriers of NFSS FSS as shown in the example in Figure 17 with top-down system.
PLS1PLS1 unit is mapped from the first unit of the first FSS first with the incremental order of unit index.PLS2 unit is directly
It follows after the last cell of PLS1, and continues mapping downwards, until the last cell index of the first FSS.
The sum of PLS cell if necessary is more than the number of the active carriers of a FSS, then mapping proceeds to next FSS, and
Continued in the mode exactly the same with the first FSS.
After PLS mapping is completed, DP is next carried.If EAC, FIC or both are present in present frame, it
Be placed between PLS and " common " DP.
Figure 18 illustrates the EAC mapping of embodiment according to the present invention.
EAC is the dedicated channel for carrying EAS message, and is linked to the DP for EAS.EAS support is provided, but
It is that EAC itself may or may not necessarily be present in each frame.If any, EAC reflects after PLS2 unit
It penetrates.Other than PLS cell, EAC is not before any one of FIC, DP, auxiliary flow or mute cell.Map EAC cell
Process is identical with PLS.
EAC cell is reflected with the incremental order of the cell index as shown in the example in Figure 18 from next cell of PLS2
It penetrates.Depending on EAS message size, EAC cell can take up several symbols, as shown in figure 18.
EAC cell continues mapping downwards after the last cell of PLS2, and FSS to the last is most
Until cell index afterwards.The sum of EAC cell if necessary is more than the number of the remaining active carriers of last FSS,
Then mapping proceeds to next symbol, and to continue with FSS exact same way.In this case, for mapping
Next symbol is general data symbol, has carrier wave more significantly more efficient than FSS.
After EAC mapping is completed, if any one exists, next FIC is carried.If FIC is not sent
(such as being transmitted in PLS2 field with signal), then DP is after the last cell of EAC.
Figure 19 illustrates the FIC mapping of embodiment according to the present invention.
(a) example mappings of the FIC cell without EAC are shown, and the example of the FIC cell with EAC (b) is shown
Mapping.
FIC is for carrying cross-level information to allow quick service to obtain the dedicated channel with scan channel.This letter
Breath is mainly included in the channel Binding information between DP and the service of each broadcasting equipment.In order to quickly scan, receiver can be solved
Code FIC simultaneously obtains information, such as, broadcasting equipment ID, service-number and BASE_DP_ID.For quick service acquisition, in addition to FIC
Except, BASE_DP_ID decoding can be used in basic DP.Except its carrying content in addition to, basic DP by with the complete phase of common DP
Same mode encodes and is mapped to frame.Therefore, other description is not needed for basic DP.FIC data generate in management level
And consumption.The content of FIC data describes in management level specification.
FIC data are optional, and the use of FIC is by the FIC_FLAG parameter signal in the static part of PLS2
Transmission.If using FIC, FIC_FLAG is arranged to " 1 ", and is used for static part of the signaling field in PLS2 of FIC
In be defined.In this field with signal transmit be FIC_VERSION and FIC_LENGTH_BYTE.FIC is used and PLS2
Identical modulation, compiling and time-interleaved parameter.FIC shares identical signaling parameter, such as PLS2_MOD and PLS2_FEC.Such as
If fruit has, FIC data are mapped after PLS2 or EAC.FIC is not by any common DP, auxiliary flow or mute
Cell guidance.The method for mapping FIC cell is identical with EAC, also identical with PLS.
Do not have EAC after PLS, FIC cell is by with the incremental order of the cell index as shown in the example in (a)
It is mapped from next unit of PLS2.Depending on FIC size of data, FIC cell can be mapped on several symbols, such as (b)
It is shown.
FIC cell continues mapping downwards after the last cell of PLS2, and FSS to the last is most
Until cell index afterwards.The sum of FIC cell if necessary is more than the number of the remaining active carriers of last FSS,
Then mapping proceeds to next symbol, and to continue with FSS exact same way.In this case, for mapping
Next symbol is general data symbol, has the carrier wave more active than FSS.
If EAS message is sent in the current frame, EAC is before FIC, and FIC cell is by as shown in (b)
The incremental order of cell index is mapped from next unit of EAC.
After FIC mapping is completed, one or more DP are mapped, and are auxiliary flow later, if any, and mute letter
Member.
Figure 20 illustrates the type of the DP of embodiment according to the present invention.
(a) Class1 DP is shown and (b) shows type 2DP.
Channel previous, that is, after PLS, EAC and FIC are mapped, the cell of DP is mapped.According to mapping method DP
One be classified as in two types:
Class1 DP:DP is mapped by TDM
Type 2DP:DP is mapped by FDM
The type of DP is indicated by the DP_TYPE field in the static part of PLS2.Figure 20 illustrated type 1DP and type
The mapping order of 2DP.Class1 DP is mapped first with the incremental order of cell index, then, is reaching last cell index
Later, notation index is increased 1.In next symbol, DP continuation is reflected with the incremental order of the cell index since p=0
It penetrates.Using the number of the DP jointly mapped in a frame, each of Class1 DP is grouped in time, similar to DP's
TDM multiplexing.
Type 2DP is mapped first with the incremental order of notation index, then, in the last OFDM symbol for reaching the frame
Later, cell index increases by 1, and then notation index backtracking increases to the first available symbol from the notation index.One
After the number for mapping DP in a frame together, each of type 2DP is grouped together with frequency, is multiplexed similar to the FDM of DP.
If necessary, Class1 DP and type 2DP can be existed simultaneously in frame, and have a limitation: Class1 DP begins
Eventually before type 2DP.The sum of the OFDM cell of bearer types 1 and type 2DP no more than can be used for the OFDM of DP transmission
The sum of cell.
Mathematical formulae 2
[mathematical expression 2]
DDP1+DDP2≤DDP
Here DDP1 is the number of the OFDM cell occupied by Class1 DP, and DDP2 is by the number of the type 2DP cell occupied
Mesh.Since PLS, EAC, FIC are mapped in a manner of identical with Class1 DP, so all of which follows " Class1 mapping rule
Then ".Therefore, generally speaking, Class1 maps always before the mapping of type 2.
Figure 21 illustrates the DP mapping of embodiment according to the present invention.
(a) the OFDM cell that addressing is used for map type 1DP is shown, and addressing (b) is shown for mapping for type 2DP
OFDM cell.
The addressing of OFDM cell for map type 1DP (0 ..., DDP11) limits the alive data for being used for Class1 DP
Cell.Addressing scheme limits the sequence that the cell from the T1 for each of Class1 DP is assigned to alive data cell.Its
It is also used in the dynamic part of PLS2 with the position of signal transmission DP.
In the case where not having EAC and FIC, address 0 is referred in last FSS immediately following the last letter of carrying PLS
The cell of member.If EAC is sent, and FIC not in corresponding frame, then address 0 is referred to immediately following the last of carrying EAC
The cell of cell.If FIC is sent in corresponding frame, address 0 refers to the letter of the last cell immediately following carrying FIC
Member.Address 0 for Class1 DP is it is contemplated that two different situations as shown in (a) calculate.In the example of (a), PLS,
EAC and FIC is assumed to be whole transmissions.It is specific that the extension of situation is omitted to the alternative one or both of EAC and FIC.
All cells such as are being mapped until FIC shown in the left side of (a), if there are remaining cells in FSS.
The addressing of OFDM cell for map type 2DP (0 ..., DDP21) is defined for the active number of type 2DP
It is believed that first.Addressing scheme limits the sequence that the cell from the TI for each of type 2DP is assigned to alive data cell.
It is also used in the dynamic part of PLS2 with the position of signal transmission DP.
Three slightly different situations are admissible as shown in (b).For shown on the left side of (b) first
Situation, the cell in last FSS can be used for type 2DP mapping.For in the second situation shown in centre, FIC occupies general
The cell of logical symbol, still, the number of FIC cell is not more than C on the symbolFSS.In addition to the FIC letter mapped on the symbol
The number of member is more than CFSSExcept, the third situation shown on the right side (b) is identical as the second situation.
To Class1 DP, the extension of situation is simply, because PLS, EAC and FIC are followed and type before type 2DP
1DP identical " Class1 mapping ruler ".
Data pipe unit (DPU) is the basic unit for cell of data to be distributed to DP in frame.
DPU is defined for the signaling unit being positioned at DP in frame.Cell mapping device 7010 can be mapped for each
The cell that a DP is generated by TI.Time interleave 5050 exports a series of TI block and each TI block includes then by one group
The XFECBLOCK of the variable number of cell composition.The number N of cell in XFECBLOCKcellsDepending on FECBLOCK size
NldpcWith the number for the bit of each constellation symbol sent.DPU be defined as supporting in given PHY profile
The number N of cell in XFECBLOCKcellsAll possible value in maximum remainder.The length quilt of DPU in terms of cell
It is defined as LDPU.Because each PHY profile supports the different number of bit of the maximum of FECBLOCK size and each constellation symbol
Combination, so defining LDPU based on PHY profile.
The FEC structure of Figure 22 diagram embodiment according to the present invention.
Figure 22 is shown in the FEC structure of embodiment according to the present invention before Bit Interleave.As mentioned above, data
FEC encoder can be used outer compiling (BCH) and interior compiling (LDPC) and execute FEC coding to the BBF of input, to generate
FECBLOCK process.The FEC structure of diagram corresponds to FECBLOCK.In addition, FECBLOCK and FEC structure, which has, corresponds to LDPC
The identical value of code word size.
Bose-Chaudhuri-Hocquenghem Code is applied to each BBF (KbchBit), then LDPC coding application is in the BBF (K of Bose-Chaudhuri-Hocquenghem CodeldpcBit
=NbchBit), as shown in Figure 22.
NldpcValue either 64800 bits (long FECBLOCK) or 16200 bits (short FECBLOCK).
The FEC coding parameter for long FECBLOCK and short FECBLOCK is shown respectively in table 28 and table 29 below.
Table 28
[table 28]
Table 29
[table 29]
The details of operation of Bose-Chaudhuri-Hocquenghem Code and LDPC coding is as follows:
12- error correction BCH code is used for the outer compiling of BBF.BCH generator polynomial for short FECBLOCK and long FECBLOCK
It is obtained together by all polynomial multiplications.
LDPC code is used to encode the output of outer Bose-Chaudhuri-Hocquenghem Code.In order to generate complete Bldpc(FECBLOCK), Pldpc(odd even school
Test bit) from each Ildpc(BBF of Bose-Chaudhuri-Hocquenghem Code) is attached to I by system codingldpc.Complete Bldpc(FECBLOCK)
The mathematical formulae being expressed as.
Mathematical formulae 3
[mathematical expression 3]
It is provided in above table 28 and 29 respectively for the parameter of long FECBLOCK and short FECBLOCK.
Calculate the N for being used for long FECBLOCKldpc–KldpcThe detailed process of Parity Check Bits is as follows:
1) Parity Check Bits are initialized,
Mathematical formulae 4
[mathematical expression 4]
2) add up the first information at the parity bit addresses specified in the first row of the address of parity matrix
Bit i0.The details of the address of parity matrix will be described later.For example, for rate 13/15:
Mathematical formulae 5
[mathematical expression 5]
3) for next 359 information bits, is, s=1,2 ... 359, using mathematical formulae below in odd even
Verify the i that adds up at bit addresss。
Mathematical formulae 6
[mathematical expression 6]
{x+(s mod 360)×Qldpc}mod(Nldpc-Kldpc)
Here x indicates to correspond to the first bit i0Parity Check Bits accumulator address, and QIdpcIt is in odd even school
Test the relevant constant of encoding rate specified in the address of matrix.Continue the example, for rate 13/15, QIdpc=24, therefore,
For information bit i1, execute operation below:
Mathematical formulae 7
[mathematical expression 7]
4) for the 361st information bit i360, even-odd check ratio is provided in the second row of the address of parity matrix
The address of special accumulator.In a similar way, it is obtained using expression formula 6 and is used for 359 information bit i belowsEven-odd check
The address of bit accumulator, s=361,362 ... 719, here x indicate correspond to information bit i360Parity Check Bits it is tired
Add the address of device, that is, the entry in the second row of the address of parity matrix.
5) in a similar way, each group of the information bit new for 360, from the new of the address of parity matrix
The address gone for finding Parity Check Bits accumulator.
After all information bits are used up, last Parity Check Bits obtain as follows:
6) start to be sequentially performed operation below with i=1.
Mathematical formulae 8
[mathematical expression 8]
Here piLast content, i=0,1 ..., NIdpc-KIdpc- 1, it is equal to Parity Check Bits pi。
Table 30
[table 30]
| Encoding rate | Qldpc |
| 5/15 | 120 |
| 6/15 | 108 |
| 7/15 | 96 |
| 8/15 | 84 |
| 9/15 | 72 |
| 10/15 | 60 |
| 11/15 | 48 |
| 12/15 | 36 |
| 13/15 | 24 |
It replaces in addition to 31 substitution table 30 of table, and with the address of the parity matrix for short FECBLOCK for growing
Except the address of the parity matrix of FECBLOCK, this LDPC cataloged procedure for short FECBLOCK is according to for growing
The LDPC cataloged procedure of FECBLOCK.
Table 31
[table 31]
| Encoding rate | Qldpc |
| 5/15 | 30 |
| 6/15 | 27 |
| 7/15 | 24 |
| 8/15 | 21 |
| 9/15 | 18 |
| 10/15 | 15 |
| 11/15 | 12 |
| 12/15 | 9 |
| 13/15 | 6 |
The Bit Interleave of Figure 23 diagram embodiment according to the present invention.
By Bit Interleave, quasi- loop blocks (QCB) by odd-even, later interweave between group for the output of LDPC encoder
Interweave composition.
(a) quasi- loop blocks (QCB) intertexture is shown, and (b) shows and interweaves between group.
FECBLOCK can be by odd-even.At the output of odd-even, LDPC code word is by 180 in long FECBLOCK
A adjacent QC block and the QC block composition that 45 adjacent in short FECBLOCK.Each QC block in long or short FECBLOCK
It is made of 360 bits.The LDPC code word of odd-even is interweaved by QCB intertexture.The unit that QCB interweaves is QC block.In odd even
QC block at the output of intertexture is by the QCB intertexture permutatation as shown in Figure 23, here according to FECBLOCK length, Ncells
=64800/ ηmodOr 16200/ ηmod.QCB intertexture mode is unique to each combination of modulation type and LDPC encoding rate.
After QCB intertexture, interweave between group according to modulation type and rank (ηmod) execute, it is limited in table 32 below.
Also the number N for the QC block in a group is limitedQCB_IG。
Table 32
[table 32]
| Modulation type | ηmod | NQCB_LG |
| QAM-16 | 4 | 2 |
| NUC-16 | 4 | 4 |
| NUQ-64 | 6 | 3 |
| NUC-64 | 6 | 6 |
| NUQ-256 | 8 | 4 |
| NUC-256 | 8 | 8 |
| NUQ-1024 | 10 | 5 |
| NUC-1024 | 10 | 10 |
Interleaving process is executed between group with the NQCB_IG QC block of QCB intertexture output.Between group interweave have using 360 column and
NQCB_IG row write enters and the process of the bit in reading group.In write operation, the bit from QCB intertexture output is line
Write-in.Read operation is that column executes, and to read m bit from each row, here for NUC, m is equal to 1, and for NUQ,
M is equal to 2.
Figure 24 illustrates the cell word demultiplexing of embodiment according to the present invention.
Figure 24 (a) shows the cell word demultiplexing for 8 and 12bpcu MIMO, and (b) shows for 10bpcu
The cell word of MIMO demultiplexes.
Each cell word (c of Bit Interleave output0,l,c1,l,...,cηmod-1,l) be demultiplexed as shown in (a)
(d1,0,m,d1,1,m...d1,ηmod-1,m) and (d2,0,m,d2,1,m...,d2,ηmod-1,m), description is used for the letter of an XFECBLOCK
First word demultiplexes process.
Ratio for using different types of NUQ for 10 bpcu MIMO situations of MIMO coding, for NUQ-1024
Special interleaver is reused.Each cell word (c of bit interleaver output0,l,c1,l...,c9,l) be demultiplexed as (d1,0,m,
d1,1,m...d1,3,m) and (d2,0,m,d2,1,m...d2,3,m), such as shown in (b).
Figure 25 illustrates the time-interleaved of embodiment according to the present invention.
(a) to the example of TI mode show (c).
Time interleave is in DP level operations.The parameter of time-interleaved (TI) can be arranged differently than each DP.
The following parameter configuration TI occurred in the part of PLS2-STAT data:
DP_TI_TYPE (value of permission: 0 or 1): TI mode is indicated；" 0 " indicates that each TI group has multiple TI blocks (one
A above TI block) mode.In this case, a TI group is mapped directly into a frame (no interframe interweaves)." 1 " table
Show each TI group only with the mode of a TI module.In this case, TI block can extend (frame on more than one frame
Between interweave).
DP_TI_LENGTH: if DP_TI_TYPE=" 0 ", this parameter is the number N TI of the TI block of each TI group.
For DP_TI_TYPE=" 1 ", this parameter is the number of the frame PI extended from a TI group.
DP_NUM_BLOCK_MAX (the value of permission: 0 to 1023): indicating the maximum number of each TI group XFECBLOCK.
DP_FRAME_INTERVAL (the value of permission: 1,2,4,8): indicating the identical DP in the given PHY profile of carrying
Two continuous frames between frame IJUMPNumber.
DP_TI_BYPASS (value of permission: 0 or 1): if not using time-interleaved, this parameter quilt for DP
It is set as " 1 ".If being arranged to " 0 " using time-interleaved.
In addition, what the parameter DP_NUM_BLOCK from PLS2-DYN data was used to indicate to be carried by a TI group of DP
The number of XFECBLOCK.
When not using time-interleaved for DP, subsequent TI group, time-interleaved operation and TI mode are not considered.But
It is that will still need the delay compensation block for carrying out child scheduler and being used for dynamic configuration information.In each DP, encoded from SSD/MIMO
Received XFECBLOCK is grouped into TI group.That is, each TI group is the set of integer XFECBLOCK, and dynamic will be included
The XFECBLOCK of variable number.The number of XFECBLOCK in the TI group of index n is by NxBLocK_Group(n) it indicates, and
It is transmitted as DP_NUM_BLOCK with signal in PLS2-DYN data.Notice NxBLocK_GroupIt (n) can be from minimum value 0 to its
Maximum value is 1023 maximum value NxBLocK_Group_MAX(corresponding to DP_NUM_BLOCK_MAX) variation.
Each TI group is mapped directly on a frame or is extended on PI frame.Each TI group is also divided into one
A above TI module (NTI), each TI block corresponds to a use of time interleave memory here.TI in TI group
Block may include the XFECBLOCK of slightly different number.If TI group is divided into multiple TI blocks, it is mapped directly into only
One frame.As shown in table 33 below, exist for three time-interleaved options (in addition to skipping time-interleaved additional choosing
Except).
Table 33
[table 33]
In each DP, TI memory storage input XFECBLOCK (output from SSD/MIMO encoding block
XFECBLOCK).Assuming that input XFECBLOCK is defined as:
Here dn,s,r,qIt is q-th of cell of r-th of XFECBLOCK in s-th of TI block of n-th of TI group, and
Indicate that the output of SSD and MIMO coding is as follows:
Moreover, it is assumed that the XFECBLOCK of the output from time interleave is defined as:
Here hn,s,iBe in s-th of TI block of n-th of TI group i-th of output unit (for i=0 ...,
NxBLOCK_TI(n, s) × Ncells-1)。
Typically, time interleave will also play the buffer that DP data are used for before frame establishment process.This is
It is realized by two repositories for each DP.First TI block is written into the first repository.2nd TI block is written into second
Repository, while the first repository is being read.
TI is two column block interleavers of distortion.For s-th of TI block of n-th of TI group, the line number N of TI memoryrIt is equal to
Cell NcellsNumber, that is, Nr=Ncells, while columns NcEqual to number NxBL0CK_TI(n,s)。
Figure 26 illustrates the basic operation for the row-column block interleaver of embodiment according to the present invention being twisted.
(a) write operation in time interleave is shown, and the read operation in time interleave (b) is shown.The
One XFECBLOCK is written to the first row of TI memory in a manner of column, and the 2nd XFECBLOCK is written to next column etc.
Deng as shown at (a).However, cell is read in intertexture array with diagonal way.From the first row (along with most
The row that the column on the left side start is to the right) during the reading of the diagonal way of a line to the end, cell is read, such as the institute in (b)
Show.In detail, it is assumed that zN, s, i(i=0 ..., NtNc) as the TI memory cell position sequentially to be read, pass through meter
The line index R of following expression formulan,S,i, column index Cn,S,iAnd associated warp parameters Tn,S,iIt executes with such school
The reading process of positive array.
Mathematical formulae 9
[mathematical expression 9]
GENERATE(RN, s, i, CN, s, i)=
{
RN, s, i=mod (i, Nr),
TN, s, i=mod (Sshift×RN, s, i, Nc),
}
Wherein SshiftIt is the public shift value for diagonal way reading process, no matter NxBLOCK_TI(n, s) is how, and
And such as following formula, pass through the N provided in PLS2-STATxBLOCK_TI(n, s) is determined.
Mathematical formulae 10
[mathematical expression 10]
For
As a result, by as zN, s, i=NrCN, s, i+RN, s, iCoordinate calculate the cell location to be read.
The operation of the row-column block interleaver being twisted of Figure 27 diagram according to another embodiment of the present invention.
More specifically, intertexture array of Figure 27 diagram for the TI memory of each TI group, including work as NxBLOCK_TI(0,
0)=3, NxBLOCK_TI(1,0)=6, NxBLOCKTIVirtual XFECBLOCK when (2,0)=5.
Variable number NxBLOCK_TI(n, s)=NrN will be less than or equal toxBLOCK_TI_MAX.Therefore, it is being received to realize
Single memory at device side deinterleaves, no matter NxBLOCK_TIHow is (n, s), by the way that virtual XFECBLOCK is inserted into TI storage
Device is arranged to N for the intertexture array used in the row-column block interleaver being twistedr×Nc=Ncells×NxBLOCK_TI_MAX
Size, and as following expression formula completes reading process.
Mathematical formulae 11
[mathematical expression 11]
The number of TI group is arranged to 3.By DP_TI_TYPE=' 0 ', DP_FRAME_INTERVAL=' 1 ', and
DP_TI_LENGTH=' 1 ', that is, NTI=1, IJUMP=1 and PI=1, signal transmission time is used in PLS2-STAT data
The option of interleaver.Each of which of each TI group is with NcellsThe number of=30 XFECBLOCK passes through N respectivelyxBLOCK_TI
(0,0)=3, NxBLOCK_TI(1,0)=6, NxBLOCK_TI(2,0)=5 it is transmitted in PLS2-DYN data with signal.Pass through
NxBLOCK_Groyp_MAx, with the maximum number of signal transmission XFECBLOCK in PLS-STAT data, this causes
Figure 28 illustrates the reading pattern of the diagonal way for the row-column block of embodiment according to the present invention being twisted.
More specifically, Figure 28 is shown from N 'xBLOCK_TI_MAX=7 and SshiftThe parameter of=(7-1)/2=3
Each intertexture array diagonal way reading pattern.Note that in the reading process as shown in pseudocode above, such as
Fruit Vi≥NcellsNxBLOCK_TI(n, s), then ViValue be skipped and use next calculating ViValue.
The XFECBLOCK being interleaved for each intertexture array of Figure 29 diagram embodiment according to the present invention.
Figure 29 is illustrated from N 'xBLOCK_TI_MAX=7 and SshiftEach intertexture array of=3 parameter is handed over
The XFECBLOCK knitted.
Figure 30 is the view for showing the protocol stack for next-generation broadcast system of embodiment according to the present invention.
Broadcast system according to the present invention can correspond to wherein the broadcasting network centered on Internet protocol (IP) and
The mixing broadcast system that broadband is coupled.
Broadcast system according to the present invention can be designed to remain simultaneous with the conventional broadcast system based on MPEG-2
Capacitive.
Broadcast system according to the present invention can correspond to based on centered on IP broadcasting network, broadband network and/or
The mixing broadcast system of the coupling of mobile communications network (or cellular network).
With reference to figure, the physics association used in broadcast system (such as ATSC system and/or DVB system) is can be used in physical layer
View.For example, emitter/receiver can send/receive ground broadcast signal and will packet in physical layer according to the present invention
The transmission frame for including broadcast data is converted into form appropriate.
In encapsulated layer, IP datagram is from the acquisition of information obtained from physical layer and acquired IP datagram quilt
It is converted into particular frame (for example, RS frame, GSE-lite, GSE or signal frame).Frame mainly includes one group of IP datagram.For example, sealing
It fills in layer, transmitter will include in transmission frame from the data of physical layer process or receiver is from the biography obtained from physical layer
MPEG-2TS and IP datagram are extracted in defeated frame.
Fast information channel in dab receiver (FIC) include access service and/or content necessary to information (for example, service ID and frame it
Between map information).FIC can be referred to as fast access channels (FAC).
Agreement, such as Internet protocol (IP), User Datagram Protocol can be used in broadcast system according to the present invention
(UDP), transmission control protocol (TCP), asynchronous layering compiling/layering compiling transmission (ALC/LCT), Rate Control Protocol/RTP control
Agreement (RCP/RTCP), hypertext transfer protocol (HTTP) and transmitted in both directions file transmission (FLUTE) processed.Between these agreements
Stack can refer to structure shown in the drawings.
In broadcast system according to the present invention, it can be passed in the form of the media file format (ISOBMFF) based on ISO
Transmission of data.Electronic service guidebooks (ESG) data, non real-time (NRT) data, audio/video can be transmitted in the form of ISOBMFF
(A/V) data and/or general data.
The transmission that data pass through broadcasting network may include the transmission of Linear content and/or the transmission of non-linear content.
The transmission of A/V and data (closed caption, emergent alarm message etc.) based on RTP/RTCP can correspond to linearly
The transmission of content.
Can with include network abstract layer (NAL) RTP/AV stream form and/or according to the media file based on ISO
The form of format encapsulation transmits RTP payload.The transmission of RTP payload can correspond to the transmission of Linear content.According to
The transmission of the form of media file format encapsulation based on ISO may include MPEG DASH media fragment of A/V etc..
The transmission of ESG based on FLUTE, the transmission of non-timed data, the transmission of NRT content can correspond in non-linear
The transmission of appearance.This can be transmitted with mime type document form and/or according to the form of the media file format encapsulation based on ISO
A bit.Transmission according to the form of the media file format encapsulation based on ISO may include the MPEG DASH media fragment etc. of A/V.
The transmission of content and the transmission of signaling data can will be divided by the transmission of broadband network.
The transmission of content includes the transmission, non-thread of Linear content (A/V and data (closed caption, emergent alarm message etc.))
The transmission of property content (ESG, non-timed data etc.) and the transmission of the media fragment (A/V and data) based on MPEG DASH.
The transmission of signaling data can be including the signaling table (MPD including MPEG DASH) by broadcast network transmission
Transmission.
In broadcast system according to the present invention, can support by the linear/non-linear content of broadcast network transmission it
Between synchronization or pass through broadcast network transmission content and the content by broadband transmission between it is synchronous.For example, by wide
Network and broadband are broadcast individually and in the case where one UD content of simultaneous transmission, receiver it is adjustable dependent on transport protocol when
Between line, and make the content by broadcasting network and the content synchronization by broadband so that content to be reconfigured in a UD
Hold.
Technical characteristic, such as interactivity, personalization, the second screen may be implemented in the application layer of broadcast system according to the present invention
Curtain and automatation content identification (ACR).These characteristics are important in 3.0 extension from ATSC 2.0 to ATSC.For example,
HTML5 can be used for the characteristic of interactivity.
In the presentation layer of broadcast system according to the present invention, HTML and/or HTML5 can be used to identify component or friendship
Room and time relationship between mutual formula application.
In the present invention, signaling includes signaling information necessary to supporting effective acquisition of content and/or service.It can be with
Binary system or XMK form express signaling data.Signaling data can be sent by terrestrial broadcast networks or broadband.
Real-time broadcast A/V content and/or data can be expressed according to ISO base media file format etc..In such case
Under, A/V content and/or data can be sent in real time by terrestrial broadcast networks, and can be non-based on IP/UDP/FLUTE
A/V content and/or data are sent in real time.It alternatively, can be by using the dynamic based on HTTP via internet in real time
Adaptation stream (DASH) receives under stream mode or request content receives broadcast A/V content and/or data.According to the present invention
Embodiment broadcast system in, the received broadcast A/V content of institute and/or data can be combined with to the various enhancings of spectators' offer
Service, such as interactive services and the second screen service.
Figure 31 is the view for illustrating the broadcasting frame of embodiment according to the present invention.
According to embodiment, broadcasting frame includes the part P1, the part L1, the part public PLP, the part the PLP (example to interweave
Such as, the part for the PLP that scheduled & is interleaved) and/or auxiliary data portion.
According to embodiment, broadcast transmitting device sends the information about transmission signal detection by the part P1 of transmission frame.
In addition, broadcast transmitting device can send the tuning information about tunes broadcast signals by the part P1.
According to embodiment, broadcast transmitting device sends the characteristic of each PLP and the configuration of broadcasting frame by the part L1.
At this point, broadcast receiver 100 obtained based on the part P1 partial decoding of h L1 broadcasting frame configuration and each PLP
Characteristic.
According to embodiment, broadcast transmitting device can send the information for being jointly used in PLP by the public part PLP.
Specific embodiment according to the present invention, broadcasting frame can not include the public part PLP.
According to embodiment, broadcast transmitting device passes through the part being interleaved and sends multiple groups be included in broadcast service
Part.At this point, the part PLP being interleaved includes multiple PLP.
In addition, broadcast transmitting device can send which the PLP group for configuring each broadcast service with signal according to embodiment
Part is sent by the part L1 or the part public PLP.However, broadcast receiver 100 decodes the multiple of the part PLP being interleaved
PLP all in order to obtain about broadcast service scanning specific broadcast service information.
Different from the embodiment, broadcast transmitting device can send broadcasting frame, including be sent by broadcasting frame
Broadcast service and include the information about the component being included in broadcast service additional part.At this point, wide
Information about broadcast service and component can be obtained immediately by additional part by broadcasting reception device 100.
Figure 32 is the view of broadcasting frame according to another embodiment of the present invention.
According to embodiment, broadcasting frame includes the part P1, the part L1, fast information channel in dab receiver (FIC) part, interweaves
The part PLP (for example, the part for the PLP that scheduled & is interleaved) and/or auxiliary data portion.
Other than the part FIC, other parts are identical as those of previous figure.
Broadcast transmitting device sends snap information by the part FIC.Snap information may include being sent by transmission frame
Configuration information, simple broadcast information on services and the service signaling related with corresponding service/component of broadcasting stream.Broadcast connects
Receiving apparatus 100 can be based on FIC partial scan broadcast service.In further detail, broadcast receiver 100 can be from the part FIC
Extract the information about broadcast service.
Figure 33 is the view of the structure of the transmission frame for the transmission broadcast service for illustrating embodiment according to the present invention.
In embodiment, the transmission grouping for sending broadcast service includes network protocol field, error indicator field, filling
Indicator field, pointer field, filling byte field and/or payload data.
The type of network protocol field expression network protocol.
Error indicator field is indicated from corresponding transmission interblock interference mistake.In further detail, if error indicator
The value of field is 0, then its expression does not detect mistake from corresponding grouping, and if the value of error indicator field is
1, then it is indicated from corresponding interblock interference to mistake.Specific embodiment in accordance with the present invention, error indicator field can be 1
Bit field.
Filling indicator field indicates whether that filling byte is included in corresponding transmission grouping.At this point, dress
It fills out byte representation and is included in the data in payload with the length for the grouping being kept fixed.Particular implementation according to the present invention
Example, when the value for loading indicator field is 1, transmission grouping includes filling byte, and when the value of filling indicator field is 0
When, transmission grouping does not include filling byte.Specific embodiment in accordance with the present invention, filling indicator field can be 1 bit words
Section.
Pointer field indicates the starting point of the new network packet in the payload portions of corresponding transmission grouping.According to
The particular embodiment of the present invention can indicate the beginning there is no new network packet when the value of pointer field is 0x7FF
Point.In addition, specific embodiment in accordance with the present invention can indicate to be grouped from transmission when the value of pointer field is not 0x7FF
The decline of header to new network packet starting point deviant.Specific embodiment in accordance with the present invention, pointer field
It can be 11 bit fields.
Filling byte field indicates the filling byte filled between header and payload data with point being kept fixed
Group length.
The configuration for receiving the broadcast receiver of broadcast service will be described with reference to Figure 34.
Figure 34 is the view for illustrating the meaning of network protocol field of embodiment according to the present invention.
The type of network protocol field expression network protocol.Specific embodiment in accordance with the present invention, network protocol field
Value can indicate IPv4 agreement or frame packet type.It in further detail, can be with when the value of network protocol field is 000
Indicate IPv4 agreement.It in further detail,, can when the value of network protocol field is 111 as shown in the embodiment of Figure 34
To indicate frame packet type (frame_packet_type) agreement.At this point, frame packet type can be and pass through ATSC
The agreement that A/153 is defined.In further detail, frame packet type can indicate not include the field for indicating the information about length
Network packet.Specific embodiment in accordance with the present invention, network protocol can be 3 bit fields.
Figure 35 is the view for illustrating the configuration of broadcast receiver of embodiment according to the present invention.
Broadcast receiver 100 include broadcast reception unit 110, Internet protocol (IP) communication unit 130 and/or
Control unit 150.
Broadcast reception unit 110 includes channel synchronizer 111, channel equalizer 113 and/or channel decoder
115。
Channel synchronizer 111 utilizes timing synchronization symbol frequency, in order to decode in the base band for receiving broadcast singal.
Channel equalizer 113 corrects the distortion for the broadcast singal being synchronized.In further detail, channel equalizer 113 corrects
The distortion for the signal being synchronized as caused by multipath and Doppler effect.
Channel decoder 115 decodes the distortion for the broadcast singal being corrected.In further detail, channel decoder 115 is from mistake
Transmission frame is extracted in the broadcast singal really corrected.At this point, channel decoder 115 can execute forward error correction (FEC).
IP communication unit 130 sends and receivees data by Internet.
Control unit 150 includes channel decoder 151, transmission packet interface 153, broadband packet interface 155, baseband operations
Control unit 157, common protocol stack 159, service mapping database 161, service signaling Channel Processing buffer and resolver
163, A/V processor 165, broadcast service guide processor 167, application processor 169 and/or service guide data library
171。
The signaling information of 151 decoding broadcast signals of signaling decoder.
It transmits packet interface 153 and extracts transmission grouping from broadcast singal.At this point, transmission packet interface 153 can be with
The data of such as signaling information or IP datagram are extracted from the transmission grouping being extracted.
Broadcast packe interface 155 extracts IP grouping from the data received from Internet.At this point, broadcast packe
Interface 155 can be grouped from IP and extract signaling data or IP datagram.
The control of baseband operations control unit 157 with from Baseband Receiver to the related operation of broadcast singal.
Common protocol stack 159 is grouped from transmission and extracts audio or video.
A/V processor 547 handles audio or video.
The signaling that service signaling Channel Processing buffer and the parsing of resolver 163 and buffering signal send broadcast service is believed
Breath.In further detail, service signaling Channel Processing buffer and resolver 163 are parsed from IP datagram and buffering is sent with signal
Broadcast service signaling information.
The service storage of mapping database 165 includes the broadcast service list of the information about broadcast service.
The terrestrial broadcast service guide data of the program of terrestrial broadcast service is instructed in the processing of service guide processor 167.
Application processor 169 is extracted and processed from broadcast system using related information.
The programme information of the storage of service guide data library 171 broadcast service.
Figure 36 is the view for illustrating the configuration of broadcast receiver according to another embodiment of the present invention.
In embodiment, the broadcast receiver 100 of Figure 36 is logical including broadcast reception unit 110, Internet protocol (IP)
Believe unit 130 and/or control unit 150.
Broadcast reception unit 110 may include one or more processor, one or more circuit and/or
One or more hardware module executes each of multiple functions that broadcast reception unit 100 executes.In further detail
Ground, broadcast reception unit 110 can be system on chip (SOC), wherein several semiconductor components are integrated into one.At this
On point, SOC can be semiconductor, wherein various multimedia components of such as figure, audio, video and modem and all
As the semiconductor of processor and D-RAM is integrated into one.Broadcast reception unit 110 may include physical layer block 119 and object
Manage layer IP frame module 117.Physical layer block 119 receives and handles broadcast related signal by the broadcast channel of broadcasting network.
The data grouping of such as IP datagram obtained from physical layer block 119 is converted into specific frame by physical layer IP frame module 117.
For example, IP datagram can be converted into RS frame or GSE by physical layer block 119.
IP communication unit 130 may include one or more processor, one or more circuit and/or one
A or multiple hardware components execute each of multiple functions that IP communication unit 130 executes.In further detail, IP
Communication unit 130 can be system on chip (SOC), wherein several semiconductor components are integrated into one.At this point,
SOC can be semiconductor, wherein the various multimedia components of such as figure, audio, video and modem and such as locating
The semiconductor of reason device and D-RAM are integrated into one.IP communication unit 130 may include linking Internet control module 131.Mutually
Networking access control module 131 can control the operation of broadcast receiver 100 to pass through internet communications network (for example, wide
Band) it is serviced, at least one of content and signaling data.
Control unit 150 may include one or more processor, one or more circuit and/or one
Or multiple hardware components, execute each of multiple functions that control unit 150 executes.In further detail, control is single
Member 150 can be system on chip (SOC), wherein several semiconductor components are integrated into one.At this point, SOC can be with
It is semiconductor, wherein the various multimedia components and such as processor and D- of such as figure, audio, video and modem
The semiconductor of RAM is integrated into one.Control unit 150 may include signaling decoder 151, service mapping database 161, clothes
Be engaged in signaling channel resolver 163, using signaling resolution device 166, alarm signaling resolver 168, orientation signaling resolution device 170, fixed
To processor 173, A/V processor 161, alarm processor 162, application processor 169, the stream decoder 181 of scheduling, file solution
Code device 182, user request stream decoder 183, document data bank 184, component synchronization unit 185, service/content to obtain control list
At least one of member 187, redistribution module 189, device manager 193 and/or data sharing unit 191.
Service/content obtains control unit 187 and controls and receives the operation of device by broadband network or internet communication
Network serviced or content and with service or the related signaling data of content.
Signaling decoder 151 decodes signaling information.
163 analysis service signaling information of service signaling resolver.
Signaling information related with analysis service is extracted using signaling resolution device 166.At this point, servicing related letter
Information is enabled to can be signaling information related with service scan.In addition, servicing related signaling information can be and pass through service
The related signaling information of the content of offer.
Alarm signaling resolver 168 extracts signaling information related with parsing alarm.
Target signaling resolution device 170 extracts and parsing is for the information of personalized service or for signaling directed information
Content or information.
The processing of directional processor 173 is for personalized service or the information of content.
The processing of alarm processor 162 signaling information related with alarm.
The execution of application processor 169 control application related information and application.In further detail, application processor 169
Handle the state and display parameters of the application of downloading.
A/V processor 161 is based on decoded audio or video and application data processing A/V renders related operation.
The stream of 181 decoding scheduling of stream decoder of scheduling, the stream of scheduling are that basis is mentioned by the content of such as broadcaster
For deciding through consultation the content of the timetable stream transmission of justice.
File decoder 182 decodes the file being downloaded.Particularly, the decoding of file decoder 182 passes through internet communication
The file of network downloading.
User requests the decoding of stream decoder 183 to request the content (for example, content-on-demand) provided by user.
184 storage file of document data bank.In further detail, document data bank 184, which can store, passes through internet communication
The file of network downloading.
185 synchronizing content of component synchronization unit or service.More detailed, component synchronization unit 185, which synchronizes, passes through tune
The content that stream decoder 181, file decoder 182 and the user of degree request at least one of stream decoder 183 to obtain
The time is presented.The available additional packet of component synchronization unit 185, additional packet include for synchronized broadcast stream with by addition to
The information (being described below in the present specification) for any other isomery stream that heterogeneous network except broadcasting network is sent.
Service/content obtain control unit 187 control and receive the operation of device with obtain service, content or with service or
The related signaling information of content.
When being not received by service or content by broadcasting network, redistribution module 189 executes operation to support
It is serviced, content, service at least one of related information and information related with content.In further detail, again
Distribution module 189 can request service, content, the related information of service and the related letter of content from external administrative devices 300
At least one of breath.At this point, external administrative devices 300 can be content server.
Device manager 193 management can mutual operation external device (ED).More detailed, device manager 193 can be held
At least one of addition, deletion and update of row external device (ED).It is filled in addition, external device (ED) can be executed with broadcast reception
Set 100 connection and data exchange.
Data sharing unit 191 execute data transfer operation between broadcast receiver 100 and external device (ED) and
The related information of processing and exchanging.In further detail, data sharing unit 191 can send AV data or signaling information to outer
Part device.In addition, data sharing unit 191 can receive AV data or signaling information from external device (ED).
Figure 37 is diagram embodiment according to the present invention for obtaining service and/or content in next-generation broadcast system
Framework view.
There is receiver in next-generation broadcast system by broadcasting network or internet by method proposed by the present invention
Effect ground obtains service or content.
This illustrates the example that service or content are obtained in mixing broadcast system.
For example, service 0 is made of a video data and an audio data, and by sending out through terrestrial broadcast networks
The IP stream sent can obtain video/audio.
In the case where servicing 1, because the IP stream of carrying video data and the IP stream of carrying audio data pass through a PLP
It is sent, so receiver can obtain service 1 by decoding PLP.
In the case where servicing N, audio data can be obtained by internet and send view by terrestrial broadcast networks simultaneously
Frequency evidence.
During obtaining the component in the service 0 as described above that is included in, service 1 or service N, it is able to use
Previously described embodiments of the present invention.That is, receiver can identify PLP, it is included in service 0, service 1 or service N by it
Component obtain expected service by transmission and by decoding corresponding PLP.
Figure 38 is the view for illustrating the broadcast service signaling table of embodiment according to the present invention.
Broadcast service signaling table may include broadcast service identification information, indicate broadcast service current state information,
The title of broadcast service, indicate whether using for the information of protection algorism of broadcast service, the information of broadcast service, with
And at least one of the media component signaling information of media component that broadcast service includes is sent with signal.It is sent with signal wide
The media component signaling information for the media component that the service of broadcasting includes may include indicating whether each media component for corresponding
Information is important for broadcast service.In addition, sending the media component signaling for the media component that broadcast service includes with signal
Information may include information related with various components.
In further detail, as shown in Examples, broadcast service signaling table may include table_id field,
Section_syntax_indicator field, private_indicator field, section_length field, table_
Id_extension field, version_number field, current_next_indicator field, section_number
Field, last_section_numberr field, a num_services field, service_id field, service_
Status field, SP_indicator field, short_service_name_length field, short_service_name
Field, channel_number field, service_category field, num_components field, essential_
Component_indicator field, num_component_level_descriptor field, component_level_
Descriptor field, num_service_level_descriptors field and/or service_level_
At least one of descriptor field.
The identifier of table_id field expression broadcast service signaling information table.At this point, table_id field
Value can be one in the id value of the reservation defined in ATSC A/65.Specific embodiment in accordance with the present invention, table_id
Field can be 8 bit fields.
Section_syntax_indicator field indicates whether that broadcast service signaling information table is marked with MEPG-2TS
The exclusive district segment table of quasi- long format.Specific embodiment in accordance with the present invention, section_syntax_indicator field can
To be 1 bit field.
Private_indicator field indicates whether that current table corresponds to specific-use section.Specific reality according to the present invention
Example is applied, private_indicator field can be 1 bit field.
Section_length field indicates the length of the section after section_length field.According to the present invention
Specific embodiment, section_length field can be 12 bit fields.
Table_id_extension field is indicated for identifying broadcast service signaling information in conjunction with table_id field
The value of table.Particularly, table_id field may include the SMT_protocol_ for indicating the protocol version of service signaling information table
Version field.Specific embodiment in accordance with the present invention, SMT_protocol_version field can be 8 bit fields.
The version of version_number field expression service signaling table.Broadcast receiver 100 can be based on
The value of vserion_number field determines the availability of service signaling information table.In further detail, work as version_number
When the value of field is identical as the previously received version of service signaling table, the information of service signaling table can be not used.Root
According to the particular embodiment of the present invention, version_number field can be 5 bit fields.
Current_next_indicator field indicates whether that broadcast service signaling table is currently available.In further detail,
When the value of current_next_indicator field is 1, it can indicate that the information of broadcast service signaling table is available.
In addition, can indicate that the information of broadcast service signaling table is next when the value of current_next_indicator field is 1
It can use.Specific embodiment in accordance with the present invention, current_next_indicator field can be 1 bit field.
Section_number field indicates current session number.Specific embodiment in accordance with the present invention, section_
Number field can be 8 bit fields.
Last_section_numberr field indicates last section number.When the size of broadcast service signaling table is big,
It can be divided into multiple sections and then sent.At this point, broadcast receiver 100 is based on section_
Number field and last_section_number field determine whether to receive for owning necessary to broadcast service signaling table
Section.Specific embodiment in accordance with the present invention, last_section_number field can be 8 bit fields.
Service_id field indicates the service identifier of broadcast service for identification.Particular implementation according to the present invention
Example, service_id field can be 16 bit fields.
The current state of service_status field expression broadcast service.In further detail, it can indicate whether wide
It is currently available to broadcast service.Specific embodiment in accordance with the present invention can be with table when the value of service_status field is 1
Show that broadcast service is currently available.Specific embodiment in accordance with the present invention, broadcast receiver 100 can be based on service_
The value of status field determines whether to show corresponding broadcast service and broadcast service guide in broadcast service list.For example,
When corresponding broadcast service is unavailable, broadcast receiver 100 can not show the corresponding broadcast in broadcast service list
Service and broadcast service guide.According to another embodiment of the present invention, broadcast receiver 100 can be based on service_
The value of status field shows the access to corresponding broadcast service.For example, broadcast connects when corresponding broadcast service is unavailable
Receiving apparatus 100 can limit the access by channel up down key to corresponding broadcast service.Particular implementation according to the present invention
Example, service_status field can be 2 bit fields.
SP_indicator field can indicate whether that service protection is applied at least one in corresponding broadcast service
A component.For example, can indicate that service protection is applied in corresponding broadcast clothes when the value of SP_indicator is 1
At least one component in business.Specific embodiment in accordance with the present invention, SP_indicator field can be 1 bit field.
The size of short_service_name_length field expression short_service_name field.
The title of short_service_name field expression broadcast service.In further detail, it can be broadcasted by summarizing
The title of service shows short_service_name field.
Channel_number field shows the virtual channel number of corresponding broadcast service.
The type of service_category field expression broadcast service.
Num_components field indicates the number for the media component that corresponding broadcast service includes.It is according to the present invention
Specific embodiment, num_component field can be 5 bit fields.
Essential_component_indicator field indicates whether that corresponding media component is for corresponding wide
Broadcast important media component important for service presentation.Particular example according to the present invention, essential_component_
Indicator field can be 1 bit field.
Num_component_level_descriptor field indicates component_level_descrptor field
Number.Specific embodiment in accordance with the present invention, num_component_level_descriptor field can be 4 bit words
Section.
Component_level_descriptor field includes the additional attribute for corresponding component.
The number of num_service_level_descriptors field expression service_level_descriptor field
Mesh.Specific embodiment in accordance with the present invention, num_service_level_descriptors field can be 4 bit fields.
Service_level_descriptor field includes the additional attribute for servicing accordingly.
Service signaling table may further include the information about all (ensemble).When identical forward error correction
(FEC) when being applied at least one service and being sent, entirety indicates the set of at least one service.
Figure 39 is the view of the meaning of service_category field according to another embodiment of the present invention.
Service_category field can indicate TV service, wireless radio service, broadcast service guide, RI service and
At least one of emergency services.For example, being 0x01 in the value of service_category field as shown in Examples
In the case of, indicate TV service.In the case where the value of service_category field is 0x02, radio clothes are indicated
Business.In the case where the value of service_category field is 0x03, RI service is indicated.In service_category word
In the case that the value of section is 0x08, service guide is indicated.In the case where the value of service_category field is 0x09,
It indicates emergency alarm.Specific embodiment in accordance with the present invention, service_category field can be 6 bit fields.
Figure 40 is the view of broadcast service signaling table according to another embodiment of the present invention.
More detailed, as shown in Examples, broadcast service signaling table may further include num_ensemble_
Level_descriptors field and/or ensemble_level_descriptor field.
Num_ensemble_level_descriptors field indicates ensemble_level_descriptor field
Number.Specific embodiment in accordance with the present invention, num_ensemble_level_descriptors field can be 4 bit words
Section.
Ensemble_level_descriptor field includes for corresponding all additional attributes.
In addition, service signaling table may further include the Flow Identifier information of media component for identification.
Figure 41 is the view of stream identifier descriptor according to another embodiment of the present invention.
Flow Identifier information include descriptor_tag field, descriptor_length field and
At least one of component_tag field.
Descriptor_tag field indicates the descriptor including Flow Identifier information.Particular implementation according to the present invention
Example, descriptor_tag field can be 8 bit fields.
Descriptor_length field indicates the length of the Flow Identifier information after corresponding field.According to this
The specific embodiment of invention, descriptor_length field can be 8 bit fields.
Component_tag field indicates the media component identifier of media component for identification.At this point, media
Component identifier can have different only from the media component identifier of other media component on corresponding signaling information table
One value.Specific embodiment in accordance with the present invention, component_tag field can be 8 bit fields.
The operation for sending/receiving broadcast service signaling table is described below.
Above-mentioned broadcast service table is described as bitstream format but specific embodiment in accordance with the present invention, broadcast service table
It can be in xml format.
Figure 42 is the behaviour when broadcast transmitting device sends broadcast service signaling table for illustrating embodiment according to the present invention
The view of work.
Broadcast transmitting device may include: transmission unit, and the transmission unit is for sending broadcast singal；And control is single
Member, the control unit are used to control the operation of broadcast transmission unit.Transmission unit may include one or more processor, one
A or multiple circuits and one or more hardware module execute each in multiple functions that transmission unit executes
It is a.In further detail, transmission unit can be system on chip (SOC), wherein several semiconductor components are integrated into one.?
On this point, SOC can be semiconductor, wherein the various multimedia components of such as figure, audio, video and modem
The semiconductor of such as processor and D-RMA is integrated into one.Control unit may include one or more processor, one
A or multiple circuits and one or more hardware module execute each in multiple functions that control unit executes
It is a.In further detail, control unit can be system on chip (SOC), wherein several semiconductor components are integrated into one.At this
A little on, SOC can be semiconductor, wherein the various multimedia components of such as figure, audio, video and modem and
The semiconductor of such as processor and D-RMA is integrated into one.
Broadcast transmitting device acquisition will be comprised in transmission grouping and be sent by control unit in operation S101
Data.The data that broadcast transmitting device is sent can be real time content or metadata related with real time content.More in detail
Carefully, real time content can be the broadcast A/V content or increasing related with broadcast A/V content sent by terrestrial broadcast networks
Strong type data.
Broadcast transmitting device determines whether through the data that control unit obtains to be more than for data transmission in S103
The size that transmission grouping includes.In further detail, broadcast transmitting device transmission grouping to be used can be fixed to use
Based on the agreement of block length.At this point, when data to be sent is more than the size of grouping covering, it is difficult to smooth
Ground sends data.In addition, only sending a data of the small size in a grouping when the data to be sent are much smaller than grouping
It is inefficient.Therefore, in order to overcome inefficiency, broadcast transmitting device by the size of control unit transmission grouping and data into
Row compares.
If it is determined that transmission grouping can not include the size of the broadcast transmitting device data to be sent, then broadcast transmission fills
Set the data that segmentation will be sent by control unit in operation S105.Divided data can multiple transmission grouping in quilt
It divides and is then sent.Then, multiple transmission groupings can also comprise the information of divided data for identification.Root
According to another embodiment, the information of divided data for identification can be sent by substituting transmission grouping by additional datagram.
Divided data for identification are arranged in grouping payload by control unit S107 in broadcast transmitting device
Value.
Broadcast transmitting device has ruler more smaller than divided data by control unit packetizing in operation S109
Very little data or transmission grouping.In further detail, broadcast transmitting device processes data into the form of delivering.It is processed wide
Broadcasting grouping may include packet header and grouping payload.In addition, grouping payload may include data and payload
Header.Here, payload header is effective in grouping payload for being sent with signal other than packet header
The field of load data.In addition, the grouping payload including divided data may be used also other than the header of payload
To include divided datagram header.Here, divided datagram header is for using signal other than payload header
Send the field of the payload data in grouping payload.
According to embodiment, broadcast transmitting device can be by a data packetization in a grouping.According to another implementation
Example, broadcast transmitting device can be by multiple data packetizations in a grouping.According to another embodiment, broadcast transmitting device can
With by the segmentation of data and packetizing is in a grouping.
As mentioned above, according to the size of data or the length of grouping, the transmission that is packetized grouping can be with
Variation.Therefore, different transmission groupings is sent in the form of differentiable for broadcast transmitting device to be necessary.According to reality
Example is applied, it includes the grouping for indicating to transmit in the payload header of grouping that broadcast transmitting device can pass through via control unit
The information block data of form.According to another embodiment, when being difficult to differentiate between and to send out merely with the information in payload header
When the data sent, the control unit of broadcast transmitting device can transmit the information of the type of grouping for identification by also comprising
Carry out packetized data.
Broadcast transmitting device sends the broadcast packe being packetized by transmission unit in operation S1111.According to implementation
Example, can send broadcast packe by terrestrial broadcast networks.According to another embodiment, it can be sent and be broadcasted by Internet
Grouping.
When Figure 43 is the broadcast packe being packetized when broadcast receiver reception for illustrating embodiment according to the present invention
Operation view.
Broadcast receiver 100 receives the transmission being packetized grouping by broadcast reception unit 110 in operation S201.
Broadcast receiver 100 is extracted from the transmission grouping received by control unit 150 and is had in operation S203
Imitate payload header.Control unit 150 can obtain payload and data including data from the payload of transmission grouping,
And the payload header of payload data is sent with signal.In further detail, the control unit of broadcast receiver 100
150 can extract from the transmission grouping received for providing the broadcasted content being grouped in payload and having with broadcasted content
The additional information of at least one of the enhancing content of pass.
According to embodiment, the control unit 150 of broadcast receiver 100 can extract payload from payload header
Mistake determines at least one of information, payload precedence information and PT Payload Type information.In further detail,
Payload error determines that information indicates whether that there are wrong or whether have accordingly in the payload in broadcast packe
Imitating load includes violating the content of predetermined grammer.
In addition, precedence information indicates the priority of the data in payload.In addition, precedence information indicates effectively to carry
The characteristic information of data in lotus.For example, in the case where payload includes the signaling information of file format media data, phase
The precedence information for the grouping answered is arranged to highest priority.
In addition, PT Payload Type information indicates to include the type for imitating the grouping payload of load data.For example, having
Effect payload type information can indicate whether broadcast transmitting device by a data packetization in a grouping payload, or
Person divides a data and packetizing is in multiple grouping payload.
Broadcast receiver 100 determines whether effectively in operation S205 from the information in the payload header being extracted
Data in load are media datas.In further detail, the control unit 150 of broadcast receiver 100 can be based on grouping report
Head information determines the type of the payload in corresponding grouping.According to embodiment, the type of payload can be including
The media data of broadcasted content and enhancing content related with broadcasted content.According to another embodiment, the type of payload can
To be the metadata for including additional information necessary to for providing media data.
When determining the data in payload is media data, the control of broadcast receiver 100 in operation S207
Unit 150 determines whether that entire media data is included in a transmission grouping.According to specific embodiment, according to transmission point
The length of group and the size of entire media data, broadcast transmitting device can be by entire media data packetizations in a transmission point
In group.According to another embodiment, broadcast transmitting device can divide entire media data and by their packetizing different
In transmission grouping.Therefore, the control unit 150 of broadcast receiver 100 can determine broadcast packe by payload header
Type, so as to extract for content output complete media data.
On the other hand, according to an embodiment of the invention, effectively being carried when the control unit 150 of broadcast receiver 100 determines
When data in lotus are not media datas, it will be described more fully this with reference to Figure 66.
When the entire media data of determination is included in transmission grouping, control unit 150 in operation S209 from
One grouping payload extracts media data.According to example, the control unit 150 of broadcast receiver 100 can be from one
A media data is only extracted in transmission grouping.According to another embodiment, the control unit 150 of broadcast receiver 100 can be from
Multiple media datas are extracted in one transmission grouping.On the other hand, when the entire media data of determination is not included in transmission grouping
When, control unit 150 is in operation S211 based on payload header and fragment data header from multiple grouping payload
Extract media data.In further detail, control unit 150 can be divided from payload header and fragment data header
And the information of the media data of packetizing.Therefore, control unit 150 can identify divided media number according to the information of acquisition
According to.That is, control unit 150 can be according to the sequence of the divided media data of information acquisition of acquisition.Control unit 150 can be with
The media data obtained based on corresponding concatenated in order from different transmission groupings.
Broadcast receiver 100 provides content by content element 150 in operation S213.According to embodiment, control is single
Member 150 can provide content based on the media data of extraction.According to another embodiment, control unit 150 can be based on cascade
Media data content is provided.
Control unit 150 can export A/V content.According to another embodiment, broadcast receiver 100 can export and A/
The related enhancing data of V content.
Figure 44 is the view for illustrating the segment configuration of embodiment according to the present invention.
On packet-based data transfer protocol, each grouping has been typically configured packet header and grouping effectively carries
Lotus, as shown in Figure 40.Packet header may include the information of the grouping payload in grouping.Being grouped payload can be with
Including the media data to be sent via broadcasting network or Internet.The media data that grouping payload includes can be with
It is at least one of audio, video, enhancing service and information on services.
Figure 45 is real-time transmission grouping (RTP) grouping for real-time content transmission for illustrating embodiment according to the present invention
Structure view.
RTP grouping may include RTP header and RTP payload.RTP header include timestamp, synchronous source identifier, with
And/or person participates at least one of source identifier.
RTP header may include V (version) field, P (filling) field, X (extension) field, CC field, M (market bit)
Field, payload type field, sequence-number field and and/or at least one of timestamp field.
V (version) field indicates the version information of corresponding RTP.Specific embodiment in accordance with the present invention, V (version) field
It can be 2 bit fields.
P (filling) field indicates whether that there are filling bits in payload.Specific embodiment in accordance with the present invention, P
(filling) field can be 1 bit field.
X (extension) field indicates whether there is extended field in the rtp header.Specific embodiment in accordance with the present invention, X
(extension) field can be 1 bit field.
The number in CC field expression participation source.Specific embodiment in accordance with the present invention, CC field can be 4 bit fields.
M (market bit) field can indicate the different meanings according to PT Payload Type.For example, when transmission object is text
When part, M (market bit) field can indicate the end of file.According to another embodiment, when transmission object is video or sound
Frequency according to when, M (market bit) field can indicate first or last object of related access unit.According to the present invention
Specific embodiment, M (market bit) field can be 1 bit field.
The type of payload type field expression RTP payload.Specific embodiment in accordance with the present invention, payload
Type field can be 7 bit fields.
Sequence-number field indicates the sequence number of RTP grouping.Specific embodiment in accordance with the present invention, sequence-number field can be
16 bit fields.
Timestamp field can indicate to be grouped related temporal information with RTP.It can according to the value of payload type field
Differently to explain timestamp field.Specific embodiment in accordance with the present invention, timestamp field can be 32 bit fields.
According to the PT Payload Type of RTP header, RTP payload can be included in audio/video access unit.
For example, in the case of h .264, web feed layer (NAL) unit can be included.
Figure 46 is the media based on ISO base media file format (ISO BMFF) for illustrating embodiment according to the present invention
The view of file format.
As shown in the figure, media file format usually may include a ftyp and at least one moov, moof and
mdat。
The type and applicability of ftyp expression media file.Ftyp is located at before media file if possible.
Moov is the container for all media datas.In further detail, moov is monorail for rendering
(track) container.Presentation can be configured with one or more track.Each track and another track point in presentation
From.According to embodiment, track may include media data and according to another embodiment, and track may include for packetizing stream
The information of agreement.
Mdat is the container of media data and moof includes the information about mdat.
Figure 47 is the view of the configuration of the payload header in the grouping payload for illustrate embodiment according to the present invention
Figure.
Currently, the access unit based on media file mainly sends real-time broadcast agreement.In further detail, access unit
Refer to the minimum unit for sending media file or data.Accordingly, there exist be based on media file format to real-time send
Data method insufficient consideration.
According to an embodiment of the invention, broadcast transmitting device can be by being included in the effective load transmitted in grouping
Lotus sends the media data based on a file format.In this case, transmission grouping can be referred to as individual unit point
Group.According to an embodiment of the invention, broadcast transmitting device can be sent out by the payload being included in a transmission grouping
Send the media data based on multiple file formats.In this case, transmission grouping can be referred to as polymerization grouping.According to this
Media data based on a file format can be divided into several transmission point by another embodiment of invention, broadcast transmitting device
Group and it then can send them.In this case, transmission grouping can be referred to as the grouping of segmentation.According to the present invention
Another embodiment, broadcast transmitting device can be sent by the payload of a transmission grouping for one of Media Stream or
The multiple metadata of person.According to another embodiment, broadcast transmitting device can send one by the payload of multiple transmission groupings
A metadata.
In addition, the broadcast transmitting device of embodiment according to the present invention can send media data by various agreements.Association
View may include that the compiling of real time transport protocol (RTP), the compiling (ALC) of asynchronous layering and layering transmits in (LCT) extremely
It is one few.
In further detail, broadcast transmitting device can will indicate that the field about the information of PT Payload Type is inserted in biography
It send in the header of grouping, to indicate the there is media data based on file format in payload by corresponding field.Example
Such as, in the case where RTP, the payload type field of header can indicate the data type of payload, and particular value
Corresponding field can be assigned to as the payload type value for the media data based on file format.Then, exist
Under such circumstances, when the data for the ending for including a media data are included in the payload of grouping, RTP grouping
The M field of header can be set to 1.
In order to overcome the above problem, the payload header of embodiment according to the present invention may include indicating whether having
Imitate information, the information and expression of the priority of expression data that there is mistake or syntax error about data in load
At least one of information of type of data.In this case, the payload in payload header is indicated whether
Middle presence can be referred to as F field about the mistake of data or the information of syntax error.According to embodiment, when in payload
It is middle when there is mistake or syntax violations about data, the expression of payload header in payload with the presence or absence of about
The mistake of data or the information of syntax error can be used as forbidden_zero_bit and is arranged to 1.In further detail, have
The indicating whether to exist in payload of effect payload header about the mistake of data or the information of syntax error can be one
A bit.
In addition, the information of the priority of the expression data in payload header can be referred to as information priorities word
Section.According to embodiment, indicate that the information of the priority of data is to indicate the field of the priority of payload data.Then, table
The information of the priority of registration evidence can indicate whether that payload includes the important metadata about media file format.
For example, in the case where including the payload data of ftyp and moov, indicating the excellent of data in ISO BMFF
The information of first grade can be set to highest priority.It is indicated according to embodiment by the control unit of broadcast transmitting device
The information of the priority of data can indicate highest priority (highest), the priority more relatively low than highest priority
(medium) and minimum priority (low).In this case, the excellent of data is indicated in the case where highest priority
The information of first grade can be set to 0x00, and table can be set the priority more relatively low than highest priority the case where
For 0x01, and it can be set to 0x02 in the case where minimum priority.Above-mentioned setting value be only an example and
It can be set to another arbitrary value.
In addition, in this case, indicating that the information of the type of data can be referred to as type field.In further detail
Ground, the information of the type by indicating data, the control unit 150 of broadcast receiver 100 can identify whether transmission grouping
It is the grouping that a data are sent by a grouping, by the grouping or transmission of the multiple and different data of grouping transmission
By the grouping for being divided into one data that multiple data obtain.
In addition, the information of the type by indicating data, the control unit 150 of broadcast receiver 100, which can identify, is
It is no to transmit the grouping or send the description information including content that grouping is the metadata for sending the temporal information including content
The grouping of metadata.
According to embodiment, in the case where grouping sends a data by a grouping, broadcast receiver can be incited somebody to action
Indicate that the information of the type of data is set as 0x00.In addition, the case where grouping sends multiple and different data by a grouping
Under, broadcast receiver can set 0x01 for the information for indicating the type of data.In addition, dividing a data simultaneously in grouping
And in the case where sending divided data, broadcast receiver can set 0x02 for the information for indicating the type of data.
In addition, broadcast transmitting device can include the presentation of content or the metadata of decoding time information with packetizing, and
It is not media data, and then can sends the metadata being packetized.Broadcast receiver can be by table in this case
The information of the type of registration evidence is set as 0x03.In addition, the temporal information can be referred to as timeline data.
In addition, broadcast transmitting device can include the metadata of the description information of content with packetizing and transmission.In the situation
Lower broadcast receiver can set 0x04 for the information for indicating the type of data.It is marked in addition, above- mentioned information can be referred to as
Sign data.
However, above-mentioned setting value is merely exemplary so that the present invention is not limited to above-mentioned values.Specific reality according to the present invention
Example is applied, type field can be 5 bit fields.
Figure 48 is the payload configuration for illustrating the transmission grouping of wherein one media data of packetizing in a grouping
View.
As indicated, the grouping that one of media data is included in a grouping can be referred to as individual unit point
Group.The payload of individual unit grouping may include payload header and payload data.Payload data can be with
Including the data being segmented, the data being segmented include the media data based on a file format.According to embodiment, work as transmission
When agreement is grouped using the transmission of regular length, other than the data being segmented, payload data can also include filling
Bit.Here, filling bit is referred to for inserting after data the bit for inserting remaining space in transmission grouping.
Figure 49 is the payload configuration for the transmission grouping that the one of media data of diagram is grouped in a grouping
View.
The detailed view of transmission grouping is shown in draw above.As shown, payload header may include indicating
In the data of payload with the presence or absence of mistake or syntax error information, indicate data priority information and/
Or indicate at least one of the information of type of data.
As shown, it indicates to whether there is mistake in the data of payload or the information of syntax error may include
Indicate the value of the content there is no mistake and syntax violations.Specific embodiment in accordance with the present invention, corresponding value can be 0.
Because the media file in effective carrier data includes the important data of such as ftyp, data are indicated
The information of priority can have highest priority.As mentioned above, in the case where ftyp, because ftyp includes
For sending the information of media file with signal, so it can have highest priority.Particular implementation according to the present invention
Example, indicates that the value of highest priority can be 0x00.
Because a media file is entirely included in a grouping payload, the letter of the type of data is indicated
Breath can indicate that individual unit is grouped.According to specific embodiment, indicate that the information of the type of data can have the value of 0x00.
In addition, according to the transportation protocol and length of media file, filling bit can be selectively inserted into payload data.
Figure 50 is the view of the configuration for the transmission grouping that the plurality of media data of diagram is packetized in a grouping.
Above-mentioned grouping can be referred to as polymerization grouping.As shown in Figure 50, when the payload packet of a transmission grouping
When including the media data based on multiple and different file formats, payload data may include multiple polymerized units.It is each poly-
Closing unit may include the media data based on another file format.According to embodiment, when transportation protocol uses regular length
When grouping, other than the data being segmented, payload data can also include filling bit.
According to embodiment, a polymerized unit may include in the information and aggregated data of the length for indicating polymerized unit
At least one.In this case, indicate that the information of the length of polymerized unit can be referred to as polymerized unit length field.Root
According to the particular embodiment of the present invention, polymerized unit can be 16 bits.Therefore, polymerized unit data indicate in a file
Data.
Figure 51 is the view for illustrating the configuration of polymerized unit according to another embodiment of the present invention.
In addition to the above described embodiments, a polymerized unit may further include the class for indicating the file in polymerized unit
The information of type.
Indicate that the information of the type of polymerization can be referred to as polymerized unit type field.According to specific embodiment, broadcast
Sending device can set 0x00 for polymeric type.
According to another embodiment, polymeric type can indicate that corresponding polymerized unit includes suitable in MPEG dynamic by HTTP
The file for voluntarily initializing fragment format on flow (DASH).Here, by the segment and media fragment of integrated initialization, and
There is no additional initialization segment, obtains the segment voluntarily initialized.In further detail, voluntarily initialization segment may include matchmaker
Body segment and its media format.According to specific embodiment, in this case, broadcast transmitting device can be set polymeric type
It is set to 0x01.
According to another embodiment, polymeric type can indicate that corresponding polymerized unit includes initial on MPEG-DASH
Change the file of fragment format.Here, initialization segment is the format for following ISO BMFF.In further detail, initialization segment needs
It to include ftyp and moov.But do not include moof.According to specific embodiment, in this case, broadcast transmission dress
0x02 can be set for polymeric type by setting.
Figure 52 is the view of the payload of the grouping of the segmentation of embodiment according to the present invention.
Show one of media data be divided and be grouped be melted into it is multiple transmission grouping transmission grouping (hereinafter by
The grouping being referred to as segmented) payload configuration view.
As shown, the payload of the grouping of segmentation may include segmenting unit.In addition, when transportation protocol uses fixation
When the grouping of length, the payload of the grouping of segmentation may include filling bit.
According to embodiment, segmenting unit FU may include at least one of segmenting unit header and segmenting unit data.
Segmenting unit data may include the part of the media data based on a file format.Segmenting unit header may include segmentation
The information of cell data.
In further detail, segmenting unit header may include indicating whether that segmenting unit data include entire file medium number
According to the information of beginning data in the middle, indicate whether that segmenting unit data include the end in entire file medium data
The information of partial data and at least one of the information of type for indicating segmenting unit.
According to embodiment, indicate whether that segmenting unit data include the beginning number in entire file medium data
According to information can be referred to as start bit field.In further detail, beginning data can be including entire media data
The first bit entire data part.
For example, the segmenting unit data of corresponding payload include beginning data, broadcast transmitting device can be incited somebody to action
Indicate whether that segmenting unit data include that the information of the beginning data in entire file medium data is set as 1.More
In detail, indicate whether that segmenting unit data include that the information of the beginning data in entire file medium data can be
One bit.
According to embodiment, indicate whether that segmenting unit data include the latter end data in entire file medium data
Information can be referred to as end bit field.In further detail, latter end data can be including entire media data
The part of the entire data of end bit.
For example, the segmenting unit data of corresponding payload include latter end data, broadcast transmitting device can be incited somebody to action
Indicate whether that segment data unit includes that the information of the latter end data in entire file medium data is set as 1.More
Add and indicates whether that segmenting unit data include that the information of the latter end data in entire file medium data can be in detail
It is a bit.
According to embodiment, indicate that the information of the type of segmenting unit can be referred to as segmenting unit type field.
According to embodiment, segmenting unit type can indicate that being grouped instruction segmenting unit accordingly includes based on file format
Constituent instruments.In further detail, the constituent instruments based on file format, which can be, has the file format based on ISO BMFF
Media file.According to specific embodiment, broadcast transmitting device can set 0x00 for segmenting unit type.
According to another embodiment, segmenting unit type can indicate that corresponding segmenting unit includes on MPEG-DASH
Voluntarily initialize the file of fragment format.According to specific embodiment, in this case, broadcast transmitting device can will be segmented
Cell type is set as 0x01.
According to another embodiment, segmenting unit type can indicate that corresponding segmenting unit includes on MPEG-DASH
Initialize the file of fragment format.According to specific embodiment, in this case, broadcast transmitting device can be single by segmentation
Member is set as 0x02.
According to another embodiment, segmenting unit type can indicate that corresponding segmenting unit includes on MPEG-DASH
The file of media fragment format.According to specific embodiment, in this case, broadcast transmitting device can be by segmenting unit
It is set as 0x03.
In further detail, indicate that the information of segmenting unit type can be six bits.
Figure 53 is the view for illustrating the configuration of the payload in the grouping of segmentation according to another embodiment of the present invention
Figure.
Embodiment can be applied in the feelings that information related with the sequence of transmission grouping is not present in header therein
Condition.
As shown, the segmenting unit header in segmenting unit FU may include indicating whether that segmenting unit data are included in
The information of beginning data in entire file medium data indicates whether that segmenting unit data are included in entire file matchmaker
The information of latter end data in volume data, indicate segmenting unit type information and indicate the whole of segmenting unit
At least one of the information of sequence in a data.In information, other than indicating the information of sequence of segmenting unit
Remaining information it is identical as previous figure description.
Indicate that the information of the sequence of segmenting unit can be referred to as number-of-fragments field.In further detail, when based on file
When the media data of format is divided into the grouping of multiple segmentations, broadcast transmitting device can set the values to indicate segmenting unit
Sequence information to assign the sequence of corresponding grouping.Specific embodiment in accordance with the present invention, number-of-fragments field can be 8 ratios
Special field.
Figure 54 is when the media file based on ISO BMFF is segmented into the view of multiple groupings by broadcast transmitting device.
It is as shown, in the media file based on ISO BMFF may include ftyp and moov and multiple moof and
mdat。
Media file based on ISO BMFF can be divided into multiple files and then can incited somebody to action by broadcast transmitting device
They include in different segmenting unit data.In addition, broadcast transmitting device can be by dividing the matchmaker based on ISO BMFF
Volume data come include in payload header for information about.
Figure 55 is view of the diagram by the first segmenting unit data of broadcast transmitting device packetizing.
As shown, according to an embodiment of the invention, broadcast transmitting device, which is determined, is not present mistake in corresponding grouping
Or syntax error, and 0 is set by F field.
In addition, broadcast transmitting device can set precedence field to indicating the value of highest priority.According to this hair
Bright specific embodiment, corresponding value can be 0x00.
In addition, broadcast transmitting device can set type field to indicating that be used for will be based on the media of a file format
The value that file is divided into the grouping of several payload and is sent.Specific embodiment in accordance with the present invention, it is corresponding to be worth
It can be 0x02.
Payload data may include segmenting unit.Again, segmenting unit may include starting bit field, terminating ratio
Special field, segmenting unit type field and segmenting unit data field.
Broadcast transmitting device can will start bit field and be set as indicating that corresponding grouping includes the beginning of media file
The value of the content of data.In further detail, because the first segmenting unit includes the beginning data of media data, such as the institute in Figure 54
Show, so broadcast transmitting device can set the value for indicating corresponding content to starting bit field.
In addition, broadcast transmitting device can set table for the end bit field of the first segmenting unit shown in Figure 55
Show the value for the content that the end data of media data are not included.According to specific embodiment, broadcast transmitting device can will be tied
Beam bit field is set as 0 to indicate that corresponding grouping does not include the content of the end data of media data.
In addition, as shown, broadcast transmitting device can set segmenting unit type field to indicating that the first segmentation is single
Member includes the value of the content of the constituent instruments form based on file format.In further detail, based on the citation form of file format
It can be the File Format Data for following ISO BMFF.According to specific embodiment, broadcast transmitting device can be by segmenting unit
Type field is set as 0x00 to indicate corresponding content.
Figure 56 is diagram embodiment according to the present invention including the residue except the beginning data in segmenting unit data
The view of the segmenting unit of data.
As shown, according to an embodiment of the invention, broadcast transmitting device the F field of payload header can be arranged
To indicate the value in corresponding grouping there is no mistake or syntax error.According to specific embodiment, broadcast transmitting device can
To set 0 for F field.In addition, precedence field is set as indicating effectively carrying shown in Figure 56 by broadcast transmitting device
Lotus data have the value of relatively low priority.
It can not include the data that entire media data is sent with signal from the second segmenting unit according to specific embodiment.
Therefore, because the second segmenting unit has the relatively low priority than the first segmenting unit, so precedence field can be with
It is arranged to the value for the priority for having relatively low.For example, corresponding value can be 0x01.
In addition, broadcast transmitting device, which can set type field to 0x02, indicates that one will be based on as corresponding grouping
The media data of file format is divided into several payload and sends the grouping of their segmentation.
Figure 57 be diagram when payload data do not include it include start data segmenting unit data and it include tie
The view of payload configuration when the segmenting unit data of beam data.
According to an embodiment of the invention, being broadcasted because segmenting unit data do not include starting data and terminating data
Sending device can will start bit field and end bit field is set as indicating the value of corresponding information.According to particular implementation
Example, broadcast transmitting device can will start bit and end bit field is set as 0.
In addition, segmenting unit type field can be included the constituent instruments form based on file format by broadcast transmitting device
Curriculum offering be segmenting unit type field particular value.In further detail, the form based on file format, which can be, follows
The File Format Data of ISO BMFF.According to specific embodiment, broadcast transmitting device segmenting unit type field can be arranged
It is 0x00 to indicate corresponding content.The media data based on file format for being divided into grouping can have from entire file
The unique sequence started.Broadcast receiver 100 can be identified by the division of control unit 150 based on bit field is started
Segmenting unit data include the beginning in entire data.In addition, can identify segmenting unit based on end bit field
The fact that data include the latter end in entire data.However, it is possible in the presence of only by starting bit field and end bit
The case where field can not identify.
It is wide according to embodiment when segmenting unit data do not include the beginning data in entire data or terminate data
Broadcasting reception device 100 can be identified by indicating the information of the sequence of the segmenting unit in the data that are included in payload
Corresponding grouping.In further detail, indicate that the information of the sequence of segmenting unit data can be number-of-fragments field.In addition, wide
Above-mentioned presentation field can be set for the sequence of corresponding segmenting unit data by broadcasting sending device.
However, according to another embodiment, transmission grouping can not include the order information of segmenting unit data.Such
In the case of, according to embodiment, the information of the sequence of segmenting unit data for identification can be inserted into point by broadcast transmitting device
Group header.The information of the sequence of the data of segmenting unit for identification entered in packet header can be referred to as sequence number word
Section.According to another embodiment, the information of the sequence of segmenting unit data for identification can be inserted into IP by broadcast transmitting device
The offset information of datagram.
Figure 58 is that diagram includes the effective of the segmenting unit containing the end data in divided entire media data
The view of the configuration of load.In further detail, which is diagram when payload data does not include containing the segmentation for starting data
The view of payload configuration when cell data still includes containing the segmenting unit data for terminating data.
According to an embodiment of the invention, broadcast transmitting device can be with because segmenting unit data include terminating data
It will start bit field and end bit field be set as indicating the value of corresponding information.According to specific embodiment, broadcast hair
It send device that can will start field and is set as 0.Then, broadcast transmitting device can set 1 for end bit field.
In addition, segmenting unit type field can be set to indicate the including content packet being grouped accordingly in broadcast transmitting device
Include the content of the constituent instruments form since the ftyp based on ISO BMFF.According to specific embodiment, broadcast transmitting device
0x00 can be set by segmenting unit type field.
Other than above-mentioned media data, the data that broadcast transmitting device is sent by transmission grouping can also include first number
According to.
Metadata indicates additional information necessary to for providing media data.Hereinafter, with reference to Figure 59 to Figure 66,
It is recommended that broadcast transmitting device and its operating method and broadcast receiver and its operating method, are grouped in order to which packetizing transmits
In metadata and send and receive.
In addition, hereinafter, timeline information is primarily described as an example of metadata.Timeline information is to be used for
The a series of temporal information of media content.In further detail, timeline information can be for rendering or a decoded system
The temporal information of column.
In addition, timeline information may include basic time line information.Basic time line means in order to synchronous by multiple
Reference time line necessary to the media data that different transmission networks is sent.In further detail, when pass through the second transmission network
When the timeline of the media data of transmission is mapped to the timeline of the media data sent by the first transmission network, by the
The timeline for the media data that one transmission network is sent becomes basic time line.
In addition, broadcast transmitting device can expression metadata in xml format.In addition, broadcast transmitting device can be to believe
Enable the descriptor format expression metadata that may include in table.
Figure 59 is the view for illustrating the timeline signaling table of metadata of embodiment according to the present invention.
According to an embodiment of the invention, timeline signaling table may include the information for indicating metadata related with timeline
Or corresponding metadata includes the information of timeline component access unit.Above- mentioned information can be referred to as identifier field.Root
According to the particular embodiment of the present invention, identifier field can be 8 bit fields.
In addition, according to an embodiment of the invention, timeline signaling table may include indicating timeline component access unit
The information of the length of timeline information.Above- mentioned information can be referred to as AU_length field.Particular implementation according to the present invention
Example, AU_length field can be 32 bit fields.
In addition, according to an embodiment of the invention, timeline signaling table may include about whether including position about service
The information of confidence breath and/or content components related with timeline component access unit.Above- mentioned information can be referred to as
Location_flag field.Specific embodiment in accordance with the present invention, location_flag field can be 1 bit field.
In addition, according to an embodiment of the invention, timeline signaling table may include in timeline component access unit
The version information of timestamp.Timestamp indicates the time that corresponding access unit needs to be exported by it with continuous timeline
Information.Above- mentioned information can be referred to as timestamp_version field.Specific embodiment in accordance with the present invention,
Timestamp_version field can be 1 bit field.
In addition, according to an embodiment of the invention, timeline signaling table may include the time of timeline component access unit
Stab type information.Above- mentioned information can be referred to as timestamp_type field.
According to embodiment, timestamp type information can be set to indicate service decoding time or with timeline group
The value of the related content components of part access unit.In further detail, the decoding time of content components can be referred to as decoding time
Stamp.According to specific embodiment, when corresponding information indicates decoding time, broadcast transmitting device can be by timestamp type information
It is set as 0x00.
According to another embodiment, timestamp type information can be set to indicate the presentation time or and time of service
The value of the related content components of line component access unit.In further detail, the presentation time of content components can be referred to as and present
Timestamp.According to specific embodiment, when corresponding information indicates that the time is presented, broadcast transmitting device can be by timestamp type
Information is set as 0x01.
In addition, specific embodiment in accordance with the present invention, timestamp_type field can be 1 bit field.
In addition, according to an embodiment of the invention, timeline signaling table may include the time of timeline component access unit
Stab format information.Above- mentioned information can be referred to as timestamp_format field.
According to embodiment, when timestamp format information can indicate that the timestamp in timeline component access unit is media
Between format.According to specific embodiment, broadcast transmitting device can set timestamp_format field to 0x00 with
The timestamp format for indicating corresponding access unit is media time format.
According to another embodiment, timestamp format information can indicate that the timestamp in timeline component access unit is net
The format of network time protocol (NTP).According to specific embodiment, broadcast transmitting device can be by timestamp_format field
The timestamp format for being set as indicating corresponding access unit with 0x01 is NTP format.
According to another embodiment, timestamp format information can indicate that the timestamp in timeline component access unit is
The format of MPEG DASH media presentation time.According to specific embodiment, broadcast transmitting device can be by timestamp_
It is the MPEG DASH media presentation time that format field, which is set as 0x02 with the timestamp format for indicating corresponding access unit,.
Indicate that the media time field of media time can indicate the media presentation time of MEPG DASH.
According to another embodiment, timestamp format information can indicate that the timestamp in timeline component access unit is
The format of NPT (present play time).According to specific embodiment, broadcast transmitting device can be by timestamp_format word
Section is set as 0x03, to indicate that the timestamp format of corresponding access unit is NPT (present play time) format.
According to another embodiment, when timestamp format information can indicate that the timestamp in timeline component access unit is
Between code format.According to specific embodiment, broadcast transmission device can set timestamp format fields to 0x04 with table
The timestamp format for showing corresponding access unit is time code format.In addition, specific embodiment in accordance with the present invention,
Timestamp_format field can be 4 bit fields.
According to another embodiment, timestamp format information can indicate that the timeline in timeline component access unit is
The format of Precision Time Protocol (PTP).
According to another embodiment, timestamp format information can have the value of 0x05-0x0E, be retained for making in the future
With.
According to another embodiment, timestamp format information can have for indicating the timestamp format for special purpose
0x0F value.
In addition, according to an embodiment of the invention, timeline signaling table may include about with timeline component access unit
In timestamp in information-related content or service the related location information of component.Above- mentioned information can be referred to as position
Set field.Location information can indicate the identifier MPD (matchmaker of stream, content components or MPEG DASH or the MPD URL of service
Description is presented in body).
In addition, according to an embodiment of the invention, timeline signaling table may include the information for indicating the length of location information.
Indicate that the information of location information length can be referred to as location_length field.Specific embodiment in accordance with the present invention,
Location_length field can be 8 bit fields.
In addition, according to an embodiment of the invention, timeline signaling table may include being to stab the basic time that matching refers to
Timestamp format version information.Above- mentioned information can be referred to as origin_timestamp_version field.
According to embodiment, when origin_timestamp_version field is arranged to 0, timestamp format is indicated
With 32 bit formats.According to another embodiment, when origin_timestamp_version field is arranged to 1, this table
Show that timestamp format has 64 bit formats.
In addition, according to an embodiment of the invention, timeline signaling table may include the timestamp type letter of basic time line
Breath.Above- mentioned information can be referred to as origine_timestamp_type field.
According to embodiment, origine_timestamp_type field can be set to indicate related with basic time line
Service or content components decoding time value.In further detail, the decoding time of content components can be referred to as and decode
Timestamp.According to specific embodiment, when corresponding information indicates decoding time, broadcast transmitting device can be by origine_
Timestamp_type field is set as 0x00.
According to another embodiment, origine_timestamp_type field can be set to indicate and basic time line
The value of the presentation time of related service or content components.In further detail, the presentation time of content components can be referred to as
Presentation time stamp.According to specific embodiment, when corresponding information indicates decoding time, broadcast transmitting device can be incited somebody to action
Origine_timestamp_type field is set as 0x01.
In addition, according to an embodiment of the invention, timeline signaling table may include the time for indicating to be used for basic time line
Stab the information of format.Above- mentioned information can be referred to as origine_timestamp_format field.
According to embodiment, origine_timestamp_format field can indicate that the timestamp of basic time line is matchmaker
The format of body time.According to specific embodiment, broadcast transmitting device can be by origine_timestamp_format field
It is media time format that 0x00, which is set as, with the timestamp format for indicating corresponding basic time line.
According to another embodiment, origine_timestamp_format field can indicate the timestamp of basic time line
It is the format of NTP.According to specific embodiment, broadcast transmitting device can be set origine_timestamp_format field
It is NTP format that 0x01, which is set to, with the timestamp format for indicating corresponding basic time line.
According to embodiment, origine_timestamp_format field can indicate that the timestamp of basic time line is
The format of MPEG DASH media presentation time.According to specific embodiment, broadcast transmitting device can be by origine_
It is MPEG DASH matchmaker that timestamp_format field, which is set as 0x02 with the timestamp format for indicating corresponding basic time line,
Time format is presented in body.
According to embodiment, origine_timestamp_format field can indicate that the timestamp of basic time line is
The format of NPT (present play time).According to specific embodiment, broadcast transmitting device can be by origine_timestamp_
It is NPT (present play time) lattice that format field, which is set as 0x03 with the timestamp format for indicating corresponding basic time line,
Formula.
According to another embodiment, origin_timestamp_format field can indicate the timestamp of basic time line
It is the format of time code.According to specific embodiment, broadcast transmission device can be by origin_timestamp_format field
It is time code format that 0x04, which is set as, with the timestamp format for indicating corresponding basic time line.
According to another embodiment, origin_timestamp_format field can indicate the timestamp of basic time line
It is the format of Precision Time Protocol (PTP).
In order to which origin_timestamp_format field value 0x05-0x0E is retained, for future usage.
Origin_timestamp_format field field can have for indicating that this field is used for special purpose
0x0F value.
In addition, according to an embodiment of the invention, timeline signaling table may include about whether the letter including location information
Breath, location information are about the related service of basic time line and content components referred to as timeline mapping.Above- mentioned information
Origin_location_flag field can be referred to as.According to embodiment, when origin_location_flag field is set
When the value being set to other than 0, timeline AU may include origin_location_flag field and origin_location
At least one of field.
In addition, according to an embodiment of the invention, timeline signaling table may include about clothes related with basic time line
Business or the related location information of content.Above- mentioned information can be referred to as origin_location field.Implemented according to specific
Example, the information in origin_location field can be IP address, port numbers or URI form.
In addition, according to an embodiment of the invention, timeline signaling table may include about clothes related with basic time line
The length information of the location information of business or content.Above- mentioned information can be referred to as origin_location_length field.
Specific embodiment in accordance with the present invention, origin_location_length field can be 8 bit fields
In addition, according to an embodiment of the invention, when the basic time line of the reference mapped as timeline is media time
Format when, timeline signaling table may include the information of pot life scale.Above- mentioned information can be referred to as origin_
Timescale field.For example, time scale can indicate 9000Hz in the case where MPEG-2TS.It is according to the present invention specific
Embodiment, origin_timescale field can be 32 bit fields.
Therefore, according to an embodiment of the invention, timeline signaling table may include the media time about basic time line
Information.Above- mentioned information can be referred to as origin_media_time field.In addition, origin_media_time field can root
It is different according to origin_timestamp_type meaning.For example, when origin_timestamp_type means PTS, origin_
Media_time field can indicate that the time is presented.For example, when origin_timestamp_type means DTS, origin_
Media_time field can indicate decoding time.According to specific embodiment, when origin_timestamp_version word
Origin_media_time field can be 32 bits when section is arranged to 0, and work as origin_timestamp_
Version field is arranged to can be 64 bits when 1.
In addition, according to an embodiment of the invention, timeline signaling table may include the timestamp type letter of basic time line
Breath.Above- mentioned information can be referred to as origin_timestamp field.Basic time line timestamp information can be according to origin_
The value of timestamp_format field indicates the timestamp of different-format.In addition, basic time line timestamp information can root
Different meanings is indicated according to the value of origin_timestamp_type field.For example, when origin_timestamp_type is used
When signal sends PTS, basic time line timestamp information can indicate that the time is presented.
For example, when origin_timestamp_type field indicates DTS and origin_timestamp_format word
When section is 0x01, corresponding origin_timestamp field can indicate the decoding time expressed with NTP.According to specific reality
Example is applied, origin_timestamp field can be 32 when origin_timestamp_version field is arranged to 0
Bit, and can be 64 bits when origin_timestamp_version field is arranged to 1.
According to embodiment, when origin_timestamp_format field indicates to be retained, timeline AU may include
At least one of private_data_length field and private_data_bytes () field.
Private_data_length field can indicate the byte unit length of field.Specific reality according to the present invention
Example is applied, private_data_length field can be 16 bit fields.
Length the private_data_bytes () field indicated by private_data_length field can define
It or may include following extension content.
Figure 60 is the payload number for illustrating wherein one metadata of packetizing in the payload data of transmission grouping
According to configuration view.
According to embodiment, payload data may include metadata, and metadata may include that Media Stream is related
Timeline data.In addition, when grouping of the broadcast transmitting device using the regular length in transportation protocol, being had according to embodiment
Effect load data can also comprise filling bit.
Figure 61 is embodiment according to the present invention when the payload data of transmission grouping includes the member for timeline
View when data.
As shown, according to embodiment, payload header may include F field, precedence field and type field
At least one of.
According to embodiment, broadcast transmitting device can set F field to indicate in payload there is no mistake or
The value of person's syntax violations.In further detail, broadcast transmitting device can set 0 for F field.In addition, due to payload number
According to all significant datas for including media file configuration, so broadcast initial installation can set precedence field to indicating most
The value of high priority.In further detail, broadcast transmitting device can set 0x00 for precedence field.In addition, broadcast hair
Send device that can set type field to indicating the value of the information of the metadata including the timeline information in payload.More
Add in detail, broadcast transmitting device can set 0x03 for type field.In addition, metadata may include above-mentioned grammer.
Figure 62 is the view when the multiple metadata of packetizing in a transmission grouping.
As shown, a transmission grouping includes the case where that multiple metadata can be referred to as polymerization grouping.According to implementation
Example, payload data may include multiple polymerized units.
Polymerization grouping may include for the metadata of Media Stream, the payload of video data or audio data
Payload.
According to embodiment, polymerized unit may include the information for indicating the length of metadata.According to another embodiment, when another
When the outer header fields there are metadata, polymerized unit may include about the total of metadata header fields and metadata fields length
The information of sum.Above- mentioned information can be referred to as metadata length field.
Figure 63 is the view when a transmission grouping includes several timeline information.
In further detail, it includes related more with different references from a Media Stream which, which illustrates a transmission grouping,
The case where a timeline information.According to embodiment, transmission grouping may include payload header and/or payload
The content of header is identical as above-mentioned figure.
In addition, payload data may include two polymerized units according to embodiment.However, in payload data
In polymerized unit number can be two or more.
According to embodiment, as shown in Figure 62, each polymerized unit may include metadata length field, metadata report
At least one of head file and the metadata fields including timeline information.
However, the first polymerized unit shown in Figure 63 may include the metadata fields containing first time line, and
And second polymerized unit may include the metadata fields containing the second timeline.According to specific embodiment, each timeline can
To have the data based on different references.For example, first time line can have the data based on media time, and when second
Between line can have the data based on NTP.
Figure 64 is to illustrate the grouping payload wherein divided in multiple transmission groupings with one metadata of packetizing
View.
According to embodiment, when the length of a metadata is greater than the length of transmission grouping, in this case, broadcast
Sending device can divide corresponding metadata in several transmission grouping and then can send them.As shown, it passes
Sending grouping may include at least one of payload header, metadata segment header and/or metadata segment.Separately
Outside, when transportation protocol uses the grouping of regular length, transmission grouping may include filling bit.
As shown, according to embodiment, metadata segment header may include indicating whether in corresponding transmission grouping
Metadata segment in payload data includes the information of the beginning of entire metadata.In further detail, beginning
Data can be the part of the entire data of the first bit including entire media data.Above- mentioned information, which can be referred to as, to be started to compare
Special field.Specific embodiment in accordance with the present invention, starting bit field can be 1 bit field.According to embodiment, when corresponding
When metadata segment in transmission grouping includes the beginning of entire metadata, broadcast transmitting device can will start than ad hoc
It is set to 1.
According to another embodiment, metadata segment header may include the effective load indicated whether in corresponding transmission grouping
Metadata segment in lotus data includes the information of the latter end of entire metadata.In further detail, latter end data can
Be include entire media data end bit entire data part.Above- mentioned information can be referred to as end bit word
Section.Specific embodiment in accordance with the present invention, end bit field can be 1 bit field.According to embodiment, passed when accordingly
When sending the latter end in the metadata segment in grouping including entire metadata, broadcast transmitting device can be set end bit
It is set to 1.
According to another embodiment, metadata header may include the information for indicating metadata type.Above- mentioned information can be by
Referred to as metadata type field.According to specific embodiment, metadata type can indicate that corresponding metadata segment includes the time
Line information.In this case, broadcast transmitting device can set 0x00 for metadata type field.According to another implementation
Example, metadata type can indicate that corresponding metadata segment includes metadata related with label.In this case, extensively
0x01 can be set for metadata type field by broadcasting sending device.Specific embodiment in accordance with the present invention, metadata category type-word
Section can be 5 bit fields.
Figure 65 is the view for illustrating metadata segment header according to another embodiment of the present invention.
Hereinafter, the description of content identical with the figure is omitted.
According to an embodiment of the invention, metadata segment header may include indicating in grouping payload accordingly
The information of the sequence of metadata segment.Above- mentioned information can be referred to as number-of-fragments field.Broadcast transmitting device 100 can be based on
Determine which number metadata is included in corresponding grouping in the metadata segment sequence in grouping payload.
Figure 66 is the view for illustrating the operation when broadcast receiver receives broadcast packe of embodiment according to the present invention
Figure.
When determining the data in payload in the operation S205 of figure previous is not media data, broadcast reception dress
The control unit 150 for setting 100 determines whether that entire metadata is included in a transmission grouping in operation S301.More in detail
Carefully, control unit 150 can not be metadata substitution matchmaker from the data determined in payload in payload header information
Volume data.Then, control unit 150 may determine whether corresponding entire metadata be included in a transmission be grouped in and
It is sent.As mentioned above, one or more different metadata can be included in a transmission grouping.Or
Person, a metadata are divided and are included in multiple and different transmission groupings.
According to an embodiment of the invention, when the control unit 150 of broadcast receiver 100 determines that entire metadata is included
When in a transmission grouping, control unit 150 extracts metadata from a grouping payload in operation S303.More
In detail, control unit 150 extracts payload header, and extracts metadata based on the payload header being extracted.Root
According to embodiment, control unit 150 can extract a metadata from a grouping payload.In addition, according to another embodiment,
Control unit 150 can extract multiple metadata from a grouping payload.According to another embodiment of the present invention, broadcast connects
The control unit 150 of receiving apparatus 100 can determine that a metadata is divided and is included in multiple transmission groupings.At this
In the case where sample, control unit 150 extracts metadata from multiple grouping payload in operation S305.According to specific reality
Example is applied, a metadata can be divided and packetizing is in multiple transmission grouping.The control of broadcast receiver 100
Unit 150 obtains metadata signaling data from grouping payload.Then, control unit 150 can be based on the signaling number of acquisition
Metadata is extracted according to from multiple grouping payload.
The control unit 150 of broadcast receiver 100 provides content based on the metadata being extracted in operation S307.Root
According to specific embodiment, control unit 150 can obtain presentation or the decoding time information of content from metadata.According to another
Embodiment, control unit 150 can obtain the content of description information from metadata.
Figure 67 is to work as to send video flowing using RTP by broadcasting network and use by Internet based on tray
The media data of formula sends view when video flowing.It in this case, include the related metadata of timeline receiving
After RTP grouping or IP/UDP grouping, broadcast receiver 100 can be by matching video flowing and base based on Real-time Transport Protocol
Allow in the video flowing of DASH in relation to the decoding and presentation between stream.
Figure 68 is the view for illustrating the grammer of timeline component access unit according to another embodiment of the present invention.
Timeline component AU may include the additional of the Media Stream for being associated to send by broadcasting network or internet
Metadata.Timeline component AU including the metadata about the timeline for being associated to Media Stream is shown in the figure.
Timeline component AU can be expressed with the different-format of such as XML.
Timeline component AU may include identifier information, AU_length information, location_flag information,
Origin_timestamp_flag information, timestamp_version information, timestamp_type information, timestamp_
Format information, location_length information, location information, origin_timestamp_version information, origin_
Timestamp_type information, origin_timestamp_format information, origin_location_flag information,
Origin_location_length information, origin_location information, origin_timescale information, origin_
Media_time information, origin_timestamp information, private_data_length information, private_data_
Bytes () information, time scale information, media_time information, timestamp information and/or data_bytes () information.
By it is above-mentioned it is corresponding description replacement have be included in timeline component AU grammer in letter above-mentioned
Cease the description of the information of identical title.
Identifier information can be the identifier or instruction timeline component that instruction is associated to the metadata of timeline
The identifier that access unit (AU) grammer is included.
AU_length information can indicate the length for the information being included in timeline component AU.
Location_flag information can indicate whether to include about being associated to include the letter in timeline component AU
The service of breath and the location information of content components.
Origin_timestamp_flag information can indicate whether information related with initial timestamp.
Timestamp_version information can indicate the version letter for the timestamp being included in timeline component AU
Breath.
Timestamp_type information can indicate the type for the timestamp being included in timeline component AU.For example,
When timestamp_type information has the value of 0x00, timestamp_type information can indicate to indicate such as associated
The decoded time stamp (DTS) of the decoding time of the data of the access unit (for example, audio access unit) of service/content component.
When timestamp_type information has the value of 0x01, timestamp_type information can indicate to indicate such as associated
The presentation time stamp (PTS) of the recovery time of the data of the access unit (for example, audio access unit) of service/content component.
Timestamp_format information can indicate the format for the timeline being included in timeline component AU.Example
Such as, when timestamp_format information has the value of 0x00, timestamp_format information indicates media time.This
Outside, when timestamp_format information is 0x01, timestamp_format information can indicate Network Time Protocol
(NTP), PTS is indicated when timestamp_format information is 0x02, and refer to when timestamp_format is 0x03
Show time code.The value of 0x04 to 0x0F can be retained for extending later.
Location_length information is capable of the length of indicating positions field.
Location information can indicate about be associated to include information in timeline component AU service and content group
The location information of part.Location information can be indicated in the form of IP address/port numbering or URI.
Origin_timestamp_version information can indicate the basic of the standard for that can be timeline mapping
The version of the timeline format of timeline.When corresponding field value is 0, this value can indicate that 32 bit formats are used.When
When field value is 1, this value can indicate that 64 bit formats are used.For example, when sending video flowing by broadcasting network and leading to
When crossing internet transmission audio stream, the basic time line for becoming standard during the mapping of the timeline of video flowing and audio stream can
It is the timestamp of the video flowing sent by broadcasting network.In this case, origin_timestamp_version energy
The timestamp format of video flowing of enough instructions for being sent by broadcasting network.
Origin_timestamp_type information can indicate the basic time of the standard for that can be timeline mapping
The type of the timestamp of line.For example, when origin_timestamp_type information has the value of 0x00, origin_
Timestamp_type information can indicate to indicate such as to be associated to the access unit of the service/content component of basic time line
Data (for example, audio access unit) decoding time decoded time stamp (DTS).Work as origin_timestamp_type
When information has the value of 0x01, origin_timestamp_type can indicate to indicate such as to be associated to basic time line
The presentation time stamp (PTS) of the recovery time of the data (for example, audio access unit) of the access unit of service/content component.
Origin_timestamp_format information can indicate the basic time for that can be timeline Mapping standard
The format of the timestamp of line.For example, when origin_timestamp_format information has the value of 0x00, origin_
Timestamp_format information indicates media time.When origin_timestamp_format information has the value of 0x01,
Origin_timestamp_format information indicates NTP (Network Time Protocol).In addition, working as origin_timestamp_
Origin_timestamp_format information indicates PTS when format information is 0x02, and works as origin_timestamp_
Origin_timestamp_format information indicates time code when format information is 0x03.0x04 can be retained to 0x0F
Value for extending in the future.
Origin_location_flag information can indicate whether to include about being associated be timeline mapping mark
The service of quasi- timeline and the location information of content components.
Origin_location_length information can indicate the length of origin_location field.
Origin_location information can indicate about be associated to can be timeline Mapping standard basic time
The service of line and the location information of content components.Origin_location information can be with IP address/end number number or URL
Form be expressed.
Origin_timescale information can indicate the matchmaker when basic time line corresponding with timeline Mapping standard
The markers that the body time is able to use when being expressed.For example, markers can be in the case where MPEG-2TS with the value of 90K.
Origin_media_time information can indicate on basic time line corresponding with timeline Mapping standard
Media time.The meaning of media time can depend on origin_timestamp_type.For example, origin_timestamp_
Type information can indicate media time related with the recovery time when origin_timestamp_type is PTS and
Indicate media time related with the decoding time when origin_timestamp_type is DTS.Work as origin_
Origin_media_time information can be represented as 32 bits when timestamp_version is 0, and work as origin_
Timestamp_version can be represented as 64 bits when being 1.
Origin_timestamp information can according to the field value of origin_timestamp_format indicate with when
Between line Mapping standard basic time line on different-format timestamp.When corresponding with origin_timestamp information
Between the meaning stabbed can depend on origin_timestamp_type.For example, origin_timestamp information it is corresponding when
Between stamp can indicate that as origin_timestamp_type be that DTS and origin_timestamp_format have " 0x01 "
Value when be represented as the decoding time of NTP.When origin_timestamp_version is 0, origin_timestamp believes
Breath can be represented as 32 bits, and 64 ratios can be represented as when origin_timestamp_version is 1
It is special.
Private_data_length information can indicate the length of subsequent private_data_bytes with byte.
By the length of private_data_length exclusively define private_data_bytes () information or its
Indicate the region for extending later.
Time scale information can indicate the markers that can be used for indicating media time.
Media_time information can indicate media time.The meaning of media time corresponding with media_time information
It can depend on timestamp_type.For example, media_time information can indicate and when timestamp_type is PTS
Recovery time related media time.When timestamp_version is 0, media_time can be represented as 322
Bit, and 64 bits can be expressed as when timestamp_version is 1.
Timestamp information can indicate in a different format timestamp according to the field value of timestamp_format.With when
Between the meaning of the corresponding timestamp of stamp information can depend on timestamp_type.For example, corresponding with timestamp information
Timestamp can indicate decoding time and timestamp_ that NTP is represented as when timestamp_type is DTS
Format has the value of " 0x01 ".When timestamp_version is 0, timestamp information can be represented as 32 bits,
And 64 bits can be represented as when timestamp_version is 1.
Field or region of data_bytes () the information instruction for later extension.
The data of such as audio/video stream sent by Real-time Transport Protocol based on the basic time line of such as NTP and pass through
The data for such as audio/video data that MEPG DASH is sent can be synchronized, by being reflected using the timestamp based on NTP
The media presentation time for the specific markers (for example, 10000hz) for being represented as MPEG DASH is penetrated to decode or reproduce in broadcast
Hold.
Figure 69 illustrates the biography for the support media sync on real time content transportation protocol of embodiment according to the present invention
Send packet format.
The transportation protocol of real-time content transmission is being supported for example, RTP is grouped energy in the case where real time transport protocol (RTP)
It enough include audio access unit or video network level of abstraction (NAL) unit.In order to pass through isochronous audio/video flowing on RTP
Support that the decoding and/or reproduction of audio/video stream, RTP Control Protocol (RTCP) grouping can be used.What transmitting terminal generated
RTCP grouping includes about between the RTP timestamp being included in RTP packet header and Network Time Protocol (NTP)
Information with relationship, and receiving end is by using the decoding of the information matches stream and recovery time and based on the timeline of NTP
Synchronous stream.
For this purpose, RTCP sender report packet may include V (version) information, P (filling) information, reproduce report count
(RC) information, PT Payload Type information, length information, synchronous source identifier information, NTP timestamp information, RTP timestamp letter
Breath, the classified counting information of transmitter, the octet count information of transmitter receive and report that block and/or profile specifically expand
Exhibition.
The version information of V (version) information instruction RTP.
The presence of filling bit of P (filling) the information instruction in payload is not present.
Receive the number that the instruction of report count (RC) information receives report.
PT Payload Type information indicates the type of effective carrier wave of RTCP grouping.PT Payload Type information can indicate
Sender report, receiving report or application, specifically which of grouping is included in payload.
Length information indicates the length of RTCP grouping.
Synchronous source identifier information is the identifier in the source flowed for identification.
NTP timestamp information indicates the timestamp of the Network Time Protocol as 64 bits.
RTP timestamp information indicates the RTP timestamp value for being associated to NTP timestamp field.
The classified counting information of transmitter, which corresponds to, passes through hair until the time that this SR grouping is generated since starting to transmit
The total number for the RTP data grouping for sending device to send.It counts and is reset if transmitter changes its SSRC identifier.
The octet count information of transmitter corresponds to logical since starting to transmit time for being generated until this SR grouping
Cross the total number for the payload eight bit byte (that is, not including header or filling) that transmitter is sent in RTP data grouping.
It counts and is reset if transmitter changes its SSRC identifier.This field can be used for estimating mean effective load data speed
Rate.
Profile specifically extends the field that can indicate can to extend according to transportation protocol profile.This field can include letter
The specific information of shelves and it can include different information or be explained according to profile.
The profile of Figure 70 diagram embodiment according to the present invention specifically extends.
For supporting from the different transportation protocols grouping sent by identical network or by heterogeneous networks delivering not
The information of the synchronization of the same grouping (for example, the MPEG DASH segment for passing through broadband delivery) based on transportation protocol can be added
It is added to the specific extended field of profile of RTCP sender report packet.Corresponding grouping can be configured in a different format.
For example, being based on NTP timestamp, NTP timestamp can be mapped to RTP timestamp or DASH media representation time.
The aforementioned profile being included in RTCP sender report packet specifically extend may include profile version information,
Tick lables information, timestamp format information, timestamp information and/or location information.
Profile version information can indicate the version information of profile.
Tick lables can indicate whether to include location field.
Timestamp format information can indicate the format for the timestamp field for being included.
For example, 0x00 and 0x07 to 0x0F is kept as timestamp format information value.When timestamp format information has
When the value of 0x01, this value indicates media time.When timestamp format information has the value of 0x02, timestamp format information can
It indicates NTP, normal play time is indicated when timestamp format information has the value of 0x03, when timestamp format information has
SMPTE time code is indicated when the value of 0x04, and the time based on 90kHz is indicated when timestamp format information has the value of 0x05
Stamp, and GPS time is indicated when timestamp format information has the value of 0x06.
When timestamp format information has the value of 0x01, when this value can indicate that the format of timestamp field is media
Between, and the media time can correspond to the media presentation time of MPEG DASH.
Timestamp information can include related timing information.For example, timestamp information can be including MPEG DASH's
The related presentation reference clock information of MPD.The timestamp information can include target such as markers and/or reference time when being based on
The timing information of line.
Location information can indicate the MPEG DASH for being associated to timestamp field value the related information of MPD (for example,
MPD id or URL).
In addition, the information being included in the grammer of timeline component access unit above-mentioned can be included in profile spy
In fixed extension.
The RTPC application packet corresponding with the RTCP of application definition grouping of Figure 71 diagram embodiment according to the present invention.
RTCP grouping may include V (version) information, P (filling) information, word type information, PT Payload Type information,
Length information, name information and/or the relevant data of application.
The version information of V (version) information instruction Real-time Transport Protocol.
The presence of filling bit in P (filling) information instruction payload is not present.
Word type information can indicate the subtype of RTCP grouping payload.
PT Payload Type information indicates the type of RTCP grouping payload.PT Payload Type information can indicate
Imitating load includes the specific grouping of application.
Length information indicates the length of RTCP grouping.
Name information can include the information of such as Apply Names.
Using the information that relevant data can include using limitation.
Figure 72 illustrate embodiment according to the present invention using relevant data.
According to one embodiment of present invention, it is able to use same for the time using relevant data field transmission/reception
The timing information of step.
It may include data type information, version information, tick lables information, timestamp lattice using relevant data field
Formula information, NTP timestamp information, timestamp information and/or location information.
Data type information can indicate the type for the data being included in corresponding field.
Version information can indicate the version information for the profile being grouped accordingly.
Tick lables information can indicate whether that being grouped accordingly includes location field.
Timestamp format information can indicate the format for the timestamp field for being included.For example, from timestamp format
0x00 and 0x07 to 0x0F in the value of information can be retained for future use.When timestamp format information is respectively provided with
When the value of 0x01,0x02,0x03,0x04,0x05 and 0x06, when timestamp format information can indicate media time, network
Between agreement (NTP), Normal Play Time (NPT), SMPTE time code, timestamp and GPS time based on 90kHz.
For example, the media presentation time of MPEG DASH can be represented as it is opposite with the timestamp format information value of 0x01
The media time answered.It alternatively, can be by the way that different values be distributed to the matchmaker that timestamp format information indicates MPEG DASH
The time is presented in body.
The timestamp of NTP timestamp information instruction Network Time Protocol.
Timestamp information may include related timing information.For example, timestamp information can be including MEPG DASH's
The related presentation reference clock information of MPD.Timestamp information can include target such as markers and/or reference time line when being based on
Timing information.
Location information can indicate to be associated to timestamp field value the related information of MPD (for example, MPD id or
URL)。
When the relevant data field of application above-mentioned is by use, be used for broadcasting network simultaneously when RTP sends/receive agreement
And the MPEG DASH media presentation time can be mapped when passing through media data of the internet transmission/reception based on MPEG DASH
To the timestamp of network transport protocols.Because the RTP timestamp of audio/video data can also be mapped to RTP timestamp, institute
By realizing that synchronizing between RTP grouping and MPEG DASH data can decode and/or reproduce broadcasted content.
Figure 73 illustrates the protocol stack as embodiment of the invention that can be applied to broadcast system.
It, can be via the RTP or ALC/LCT extension delivering flow data (example on IP/UDP in terrestrial broadcast channels
Such as, video, audio, closed caption).Particularly, can via RTP deliver flow data access unit or can be via ALC/
LCT extension delivering includes the ISO BMFF object of the set of the access unit of flow data.Furthermore it is possible to via on ACL/LCT
FLUTE delivers non-real-time file.In addition, IP/UDP datagram or link layer signaling can be packaged in a link layer and make
It is delivered for the form of encapsulation.
In the broadband network, MPEG DASH can support the delivering of flow data and HTTP can be supported in unicast tunnel
On file delivery.On Multicast Channel, flow data can be delivered via MPEG DASH or RTP, and can be via
FLUTE file delivery.
The attached drawing shows these agreements of the content delivery in following broadcast system for including clock reference stream
The example of stack.Clock reference stream may include for can from each provenance provide various streams (for example, video, audio or
Data flow) between reference timing data or information.
The encapsulation in link layer is described further.Can have can be in the feelings of no any link layer packaging
The distinct methods in relation to being grouped are directly transmitted under condition.
Link layer provides IP grouping, the encapsulation of MPEG-2TS and/or other protocol stacks.Using link layer packaging, independently of
Network layer protocol type, physical layer are capable of handling an encapsulating packets format.Substantially, network layer packet is transferred to link layer
The payload of grouping.The cascade and segmentation of network layer packet to link layer packet can be performed in order to that object is efficiently used
Manage layer resource.
For cascade, when network layer packet is small, the payload of link layer packet includes several network layer packets.Link
Layer packet header includes executing cascade field.Link layer header may include the letter for designating whether to have for network layer packet
It ceases, specify the information of cascade sequence between network layer packet and/or specified to network in link layer packet middle rank
The information of the number of network layers grouping.
For dividing and recombinating, when cannot handle within the physical layer when network layer packet is too big, network layer packet is drawn
It is divided into two or more segment.Link layer packet header includes executing to divide and execute on the receiving side on the transmit side
The field of recombination.Link layer packet header may include the net that the payload of specified wherein this link layer packet can be included
It is every in segmentation in the information of the number of the segmentation of the information of network layers grouping, specified network layer packet, specified network layer packet
First segmentation of the information of one sequence and/or specified network layer packet and/or the information finally divided.
For expense reduction, link layer provides the optional header-compressed of the reduction for the expense in IP stream.Header-compressed
It can be based on RoHC (robust header compression) frame.RoHC frame can operate in unidirectional mode.
For link layer signalling, link layer provide such as fast information channel in dab receiver, EAS (emergency warning system) message with
And/or transmission of the person such as the signaling information for the signaling of the information of expense reduction generated at link layer.
For the signaling by fast information channel in dab receiver, fast information channel in dab receiver is mainly used for effectively delivering for fast
The important information of fast scan channel and service acquisition.This information is mainly included in the bundle between broadcast service and physical data pipeline
Tie up information.
Transmission for EAS signaling, if physical layer supports specific emergency alarm channel to carry with bandwidth appropriate
Basic emergency alert message (for example, public alarm protocol message), then this channel can carry the related signaling of emergency alarm and
Basic emergency alert message.Additional media file can be delivered via individual data pipe.If physical layer is only supported
Emergency alert message is available low bandwidth notice, then basic warning message and additional media file can be via individual data
Pipeline is delivered.The robustness that individual data pipe can be configured to have high in both cases.
The concept and device that signaling is described below obtain " the guidance journey of signaling information in following broadcast system
The description of sequence " process.It can have the signaling of three ranks in each broadcasting stream.
(a) in the broadcast stream have at least one component, have about each service outline information (such as.Title, letter
Road number, service type) and to the position of the details about each service indicator all services list
(unless PHY layer provides dedicated physical layer pipe and there is the dedicated ip multicast address/end for being used for such details
Mouthful).This list can be used for constructing agent list during fast service scan.
(b) there is at least one similar component with A/65VCT (excluding service position descriptor) in the broadcast stream, or
Seeervice level letter in the URL or A/153SMT of the DASH MPD of each service to contain one or more component
Breath and to the component about service details position indicator each service attribute (unless at this information
In position identical with seeervice level information).
(c) with the various components of component-level information or the similar each service of MPEG-2PMT in A/153SMT
Position and attribute or DASH MPD.Including physical channel, physical layer pipe, ip multicast address and port and for passing through
The position of the component of the TSI of the ALC/LCT+ session (can apply) of the component of broadcast delivery, or for via broadband delivery
The URL of the DASH MPD of component (has the information for being used to indicate DASH adaptation collection or is being associated to via broadband delivery
DASH in the DASH MPD of component is indicated).For the purposes of this signaling, clock reference stream will be considered as the component of service.
When spectators select to service, device should see the agent list constructed from rank (a) signaling with true during service scan
The physical channel of the fixed component that can wherein find service.
Then device should tune physical channel appropriate and access level (b) and rank (c) signaling are required to obtain
Additional information.
Figure 74 illustrates RTP as embodiment of the invention and the conversion of time to receiver wall clock time is presented.
Broadcast system can support the real-time continuous content delivery of broadcasting stream.
For broadcast and multicast delivery, in order to via broadcast and the multicast-RTP and/or ISO BMFF on ALC/LCT+
Two different methods are described for the delivered in real-time of continuous content.If two methods are supported, they cannot be
It is used in identical service.
RTP is transported, the continuous content group via RTP can be supported for the real-time broadcast or multicast delivery of content
The delivering of part.Such delivering can be followed in real time using the transportation protocol of (RTP) and the media for wanting carried
The additional payload specification appropriate of type for H.264 video, is used for such as time text hidden subtitle
HEVC video, for HE ACC audio etc..Particularly, RTCP SR (RTP Control Protocol sender report) grouping can by with
In the synchronization in the different continuous content components via broadcast or multicast delivery.
It can be consisting of the following to the content of receiver via broadcast delivery: for each of continuous component track
Broadcast ip multicast rtp streaming --- for example, video, audio and closed caption (use protocol path RTP/IP- multicast/UDP/
IP), and/or the broadcast ip multicast RTCP SR stream for each of continuous component track (uses protocol path
RTCP/IP- multicast/UDP/IP).
For synchronous one or more continuous component via broadcast delivery, we can use following solution party
Case.
For each continuous component track, NTP (Network Time Protocol) time in the RTCP stream for track is used
N (i) and/or corresponding RTP (real time transport protocol) timestamp R (i) are stabbed with by RTP packet header (related with RTP timeline)
In the presentation time be converted into the presentation time related with NTP timeline.In the present specification, NTP timeline is can to map
The example of the reference time line of timing.NTP timeline can be replaced by reference time line or be combined with reference time line.
Reference time line include NTP timeline, GPS time line, Precision Time Protocol (PTP) timeline, present play time (NPT),
And/or UTC (Universal Coordinated Time).
If PTR is the presentation time in specific RTP packet header, and if N (i) and R (i) come from it is nearest
RTCP grouping in value, then for conversion formula be,
PTN=N (i)+(PTR-R (i))/(RTP clock rate)
Wherein PTN is the presentation time related with NTP timeline.
When selection services first, and a RTCP grouping only has been received so far, sent with signal
Nominal RTP clock rate can be used for this calculating.When receiving more RTCP grouping, can be obtained from value for real
The more accurate value of border RTCP clock rate.
(R(i+1)-R(i))/(N(i+1)-N(i))
Wherein R (i) and N (i) come from the value of RTCP grouping, and R (i+1) and N (i+1) come from it is next
The value of a RTCP grouping.The attached drawing shows the example of this situation.
When receiving at time point of the grouping to determine any offset between two when, by RTC be grouped in NTP when
Between stamp N (i) be compared with receiver wall clock time W (i).(delivering between receiver wall clock and server NTP clock is prolonged
Late and the combination of possible difference can cause non-zero offset).Using this offset to adjust from related with server NTP timeline
Value PTN to value PTW related with receiver wall clock time line RTP packet header in the presentation time.
The figure is shown in the presentation time stamp of the access unit in RTP grouping to PTN related with NTP timeline and right
The conversion that time PTW is presented related with wall clock time line is arrived afterwards.
Figure 75 illustrates as embodiment of the invention for via broadcast delivery one video track, one with RTP
The protocol stack of the case where a audio track and a closed caption track.
When via broadcast delivery to receiver being all a video track via broadcast delivery, an audio
When track and a closed caption track can be consisting of the following, it is contemplated that following service conditions: being used for three rails
One broadcast ip multicast rtp streaming of each of mark a --- video, an audio and a closed caption (uses
Protocol path RTP/IP- multicast/UDP/IP) and/or for each of three tracks a broadcast ip multicast RTCP SR
Stream (uses protocol path RTCP/IP- multicast UDP/IP).
Signaling can be used to obtain 3 rtp streamings (audio, video, the track CC) and/or 3 RTCP stream (sounds in receiver
Frequently, video, the track CC) ip multicast address and port.
Receiver can be extracted from broadcast when they arrive is used for video, audio and/or closed caption track
RTP grouping.
Receiver can be extracted from broadcast when they arrive is used for video, audio and/or closed caption track
RTCP grouping.
For each of these three tracks, the corresponding NTP in the RTCP stream for track is can be used in receiver
Timestamp N (i) and corresponding RTP timestamp R (i) with by RTP packet header (with RTP timeline in relation to) in the presentation time turn
Change the presentation time related with NTP timeline into.If PTR is the presentation time in specific RTP packet header, and if
N (i) and R (i) come from the value of nearest RTCP grouping, then the formula for conversion be PTN=N (i)+(PTR-R (i))/
(RTP clock rate), wherein PTN is the presentation time related with NTP timeline.When selection service first, and so far
When only one RTCP grouping has been received, it can be used for this calculating with the nominal RTP clock rate that signal is sent.Work as reception
To when more RTCP grouping, the more accurate value for actual RTP clock rate can be obtained from value.
(R (i+1)-R (i))/(N (i+1)-N (i)),
Wherein R (i) and N (i) come from the value of RTCP grouping, and R (i+1) and N (i+1) come from it is next
The value of a RTCP grouping.It is following that Fig. 2 shows the examples of this situation.
When receiving at time point of the grouping to determine any offset between two when, receiver can be by RTC points
NTP timestamp N (i) and receiver wall clock time W (i) in group is compared.(in receiver wall clock and server NTP clock
Between the combination of delivery latency and possible difference can cause non-zero offset).Using this offset with adjust from server
The presentation time in the RTP packet header of the related value PTN of NTP timeline to value PTW related with receiver wall clock time line.
Previously described attached drawing provides the example of this calculating.
Access unit can be presented in wall clock time appropriate in receiver in rtp streaming.
Figure 76 diagram is as embodiment of the invention to be directed to a video track, an audio track and one hide
Subtitle track is using the ISO BMFF based on ALC/LCT+ via broadcast come protocol stack the case where delivering.
Can in order to content real-time broadcast or multicast delivery and support via being included in ALC/LCT+ (asynchronous layering volume
Translate/be layered compiling transmission+) grouping in the continuous content components of ISO BMFF (ISO base media file format) Object delivery.Energy
It is enough that ISO BMFF object is formatted according to MPEG ISO base media file format (ISO BMFF), to conform to root
According to the specified profile of application.ALC/LCT+ grouping can be formatted additional LCT header extension, and timing letter is presented to carry
Breath.The presentation timing information can include the presentation time stamp of the grouping of the beginning comprising ISO BMFF object.Such presentation
Timestamp can be by the appropriate point for starting to be mapped to Shi Jizhong described in following paragraphs of ISO BMFF object timeline.If
It is necessary to make URL (for example, if MPD is used for signaling) associated with each ISO BMFF object, each ISO BMFF couple
As that can have the HTTP pattern header comprising location of content field.Alternatively, the ALC/LCT of the beginning comprising ISO BMFF object
+ grouping can have the LCT extension header comprising association URL.
" broadcast time line " can be established by sending broadcast time line clock reference value via broadcast or multicast.This
Broadcast time line can be used as base when the reference of the presentation timing information in LCT header extension.
Delivered under real-time broadcast or multicasting mode comprising passing through ALC/LCT+ via ISO BMFF object one or
Any service of multiple continuous content components may include individual " Shi Ji " component, base when defining the reference for being used as and presenting
Shi Ji.This when base component can by sent with interval appropriate timestamp grouping be constituted.Timestamp being capable of presentation code device
The sample of side system clock can be used by decoder, to be used to establish system clock in MPEG-2 environment with PCR value
Identical mode establishes decoder-side system clock.
Just via broadcast delivery to receiver can be wide by one of the clock reference time stamp comprising broadcast time line
Ip multicast stream (using protocol path reference clock/IP- multicast/UDP/IP) and/or continuous component track are broadcast (for example, video, sound
Frequency and closed caption) each of a broadcast ISO BMFF stream composition.
When a broadcast ip multicast stream (using protocol path reference clock/IP- multicast/UDP/IP) includes broadcast time line
Clock reference time stamp when, the time scale of timeline can be the ordinary clock time (for example, clock may be to service
With the UTC time of certain suitable format expression at device).
When being flowed using a broadcast ISO BMFF of each of continuous component track, each ISO BMFF file energy
Enough it is delivered as ACL/LCT+ object.
When flowing using a broadcast ISO BMFF of each of continuous component track, include ISO BMFF file
The ALC/LCT+ grouping of beginning has the timeline for providing ISO BMFF file relative to the LCT at the beginning of broadcast time line
Extension header.
When being flowed using a broadcast ISO BMFF of each of continuous component track, make if necessary URL and
Each ISO BMFF file is associated (for example, if MPD is used for signaling), and each ISO BMFF file, which can have, includes
The HTTP pattern header of location of content field.Alternatively, the ALC/LCT+ grouping of the beginning comprising ISO BMFF file can have
LCT extension header comprising being associated with URL.
It is contemplated that a video track, an audio track and a closed caption track are all passed via broadcast
The situation used below sent.
Receiver can be used signaling and obtain the ip multicast address and port of clock reference stream, and/or carrying video, audio
With the ip multicast address of the ISO BMFF of the closed caption track ALC/LCT+ session flowed and port and TSI (transport stream identification
Symbol) value.
Receiver can occur with timestamp and from clock reference stream extraction time stab, and make to be used to determine
The offset of broadcast time line and receiver " wall clock " between the time.
Receiver can occur with video, audio and closed caption track and extract video, audio and hidden from broadcast
Hide the ISO BMFF file of subtitle track.
The ALC/LCT+ of the offset determined in through the above steps and each BMFF file adjusted can be used in receiver
Presentation time stamp in extension header is that the wall clock time started is arranged in the timeline of each ISO BMFF file.
Receiver can inside relative timing in the wall clock time started based on each ISO BMFF file and file
The access unit in BMFF file is presented in wall clock time appropriate in information.
Broadcast system can support the unicast delivery of broadcasting stream.
MPEG DASH (the dynamic based on HTTP can be supported by the delivered in real-time of unicast tunnel for continuous component
Adaptation stream), while segmentation meets the specification in ISO BMFF." live streaming " DASH profile and " pre- can be specified for this purpose
Both record " DASH profiles, wherein live streaming profile is intended to use for the delivering of live content, and pre-recorded profile is intended to for pre- note
The delivering of record content (as a part of linear service or a part of on-demand service) uses.
It can support in physical layer for the error correction to fixation and the real-time continuous content delivery of mobile receiver.
Broadcast system as embodiment of the invention can support non real-time (NRT) file (or data) to deliver.
File can be supported via the non real-time delivering of broadcast or multicast.
Delivering is repaired to support the non real-time delivering for file after being able to use FEC (forward error correction) and use
Error correction.
File can be supported via the non real-time of unicast via HTTP1.1 and via the HTTP 1.1 based on TLS 1.2
Delivering.
In order to support the non real-time delivering of content file, it may be necessary to the specified file format that will be supported.Especially have
The file format of the specified file comprising continuous media of necessity, with ensure with other content synchronize be possible.
Figure 77 illustrates the continuous media component as embodiment of the invention in broadcast channel via RTP delivering and leads to
Cross the Working Examples of the synchronization between the continuous media component that broadband is delivered via DASH.
Broadcasting stream can be delivered with different types via different transmission paths.It may need to realize for passing through broadcast
Or the DASH segment that multiple media component streams of multicast delivered in real-time and carrying are segmented via the film that unicast broad-band channel delivers
Between synchronization model.
Combination for RTP (broadcast or multicast) and DASH (unicast), as described previously mentioned in, passed via RTP
The each continuous media component sent can have associated RTCP SR to flow.Each RTCP SR grouping can carry NTP clock ginseng
Timestamp and corresponding RTP clock reference time stamp are examined, can be used to RTP timeline being mapped to NTP timeline.Cause
This, presentation time (it can be indicated by the RTP presentation time stamp in RTP packet header) energy of the access unit in rtp streaming
It is enough to be determined by RTP timeline to the mapping of NTP timeline.
For the content synchronization for making the content delivered via DASH (unicast) with being delivered via RTP (broadcast or multicast), have
Necessity is established from DASH media presentation timeline to the mapping of NTP timeline.It can deliver in broadcast or multicast for establishing
From DASH media presentation timeline to information necessary to the mapping of NTP timeline.
This Figure illustrates deliver with by broadband via DASH in broadcast channel via the continuous media component that RTP is delivered
Continuous media component between synchronization Working Examples.It can be via broadcast or multicast (for example, green packet in the following figure)
Delivering and DASH media presentation timeline to the related map information of NTP timeline.
Figure 78 illustrates the continuous media component as embodiment of the invention in broadcast channel via RTP delivering and leads to
Cross the mode of the synchronization between the continuous media component that broadband is delivered via DASH.
It is by using RTCP format customizing mechanism by DASH media presentation clock for realizing a synchronous mode
Reference time stamp is included in RTCP grouping.It can be the RTCP grouping of application definition.Moreover, DASH media presentation clock is joined
RTCP grouping can be included (especially together with RTP clock reference time stamp and NTP clock reference time stamp by examining timestamp
Sender report packet).
Figure 79 illustrates the example of the RTCP grouping of the application definition as another embodiment of the present invention.
The RTCP grouping of application definition may include V (version), P (filling), subtype, PT Payload Type, length, name
Title and/or application-dependent data.Application-dependent data may include data type, version, tick lables, timestamp format, NTP
Timestamp, timestamp and/or position.
The version of V (version) instruction Real-time Transport Protocol.
P (filling) instruction filling bit is present in payload.
The sub-type information of subtype specification RTCP grouping load.
PT Payload Type indicates the type of RTCP grouping payload.
The length of Length Indication RTCP grouping.
Title includes Apply Names.
Application-dependent data includes application-dependent data.
The type information of data type instruction application-dependent data.
Version indicates the version of this application-dependent data profile.
Tick lables indicating positions field is present in application-dependent data.
The format of timestamp format instruction timestamp field.For example, it can indicate following different format.For example,
0x00: retain, 0x01: media time, 0x02:NTP (Network Time Protocol), 0x03: Normal Play Time, when 0x04:SMPTE
Between code, 0x05: 0x07-0x0F: the timestamp based on 90KHz, 0x06:GPS time retain, the MPEG DASH the case where
Under, this field can include 0x01 to indicate " media time ".
NTP timestamp includes the timestamp value of Network Time Protocol.
Timestamp includes time reference clock information (for example, time scale, presentation time stamp based on time scale etc.).
For example, it can include DASH media presentation clock reference time stamp in the case where MPEG DASH.
Position includes relevant position value, for example, DASH MPD id or URL.
Figure 80 illustrates the example of the RTCP sender report packet header as another embodiment of the present invention.
DASH media presentation clock reference time stamp can be with RTP clock reference time stamp and NTP clock reference time stamp
It is included RTCP grouping (especially sender report packet) together.
Previously described explanation can be referred to for the explanation for including information in RTCP sender report packet.
RTCP sender report packet may include version, tick lables, timestamp format, timestamp and/or position.
Version indicates profile version.
Tick lables indicating positions field is present in profile specific data.
The format of timestamp format instruction timestamp field.For example, it can indicate following different format.For example,
0x00: retain, 0x01: media time, 0x02:NTP (Network Time Protocol), 0x03: Normal Play Time, when 0x04:SMPTE
Between code, 0x05: the timestamp based on 90KHz, the 0x06:GPS time, 0x07-0x0F: retain.
Timestamp includes time reference clock information (for example, time scale, presentation time stamp based on time scale etc.).
For example, it can include DASH media presentation clock reference time stamp in the case where MPEG DASH.
Position includes relevant position value, for example, DASH MPD id or URL.
Figure 81 illustrates the protocol stack of the mixing delivering as embodiment of the invention using RTP.
It is that individually " base maps when DASH-NTP " component is included in via broadcast for realizing synchronous another way
Or in the service of multicast delivery, DASH media presentation timeline is mapped to NTP timeline.
Just via broadcast or width be delivered to receiver can by broadcast continuous component track (for example, video, audio and
Closed caption) each of a broadcast ip multicast rtp streaming (use protocol path RTP/IP- multicast/UDP/IP), broadcast
The broadcast ip multicast RTCP SR stream of each of continuous component track (uses protocol path RTCP/IP- multicast/UDP/
IP), can be used that DASH (use protocol path ISO BMFF/DASH/HTTP (S)/TCP/IP) is obtained via broadband one or
Multiple continuous component tracks and/or a broadcast on DASH media presentation timeline comprising NTP timestamp and corresponding time
Ip multicast stream is constituted.(people can conceptually consider this as the RTCP stream of DASH component.The purpose is to by DASH media
Timeline is presented and is mapped to NTP timeline.) (using protocol path reference clock/IP- multicast/UDP/IP).
We are it can be considered that a video track, an audio track and a closed caption track are passed via broadcast
It send and following mixing that the second audio track is delivered via unicast broadband delivering service condition.
This illustrates the protocol stack for being used for content delivery in this case.Utilize audio shown in intersecting hachure grey
Track not be used to present.
Signaling can be used to determine which audio track will be presented (be in this case alternate audio rail in receiver
Mark), the ip multicast address and port of INVENTIONBroadcast video and closed caption RTP/RTCP stream are obtained, DASH-NTP clock mapping stream is obtained
Ip multicast address and port, and/or obtain for alternate audio stream broadband DASH deliver MPD URL.
The URL of MPD can be used to retrieve DASH MPD in receiver.
Receiver can extract video and closed caption track as video and closed caption track are reached from broadcast
RTP grouping.
Receiver can extract video and closed caption track as video and closed caption track are reached from broadcast
RTCP grouping.
Receiver can map grouping with NTP-DASH clock and reach and extract them.
For video and closed caption track, as in RTP is delivered, the RTCP stream of track is can be used in receiver
In NTP timestamp N (i) and corresponding RTP timestamp R (i) by the presentation time in RTP packet header, (it is opposite
In RTP timeline) be converted to presentation time relative to NTP timeline.
Receiver can be used the mapping grouping of NTP-DASH clock and DASH media presentation timeline be mapped to the NTP time
Line (time scale of the two timelines is the ordinary clock time, so being only necessary to determine the offset between them).
Receiver RTCP can be grouped in NTP timestamp and reception at time point when a packet is received
Wall clock time is compared to determine any offset between the two.(delivery latency and receiver wall clock and server NTP
The combination of possible deviation between clock can result in non-zero offset.) using this offset come presentation in being grouped RTP when
Between from NTP timeline be adjusted to receiver wall clock time line, and adjust between DASH media presentation timeline and NTP timeline
Mapping to obtain the mapping between DASH media presentation timeline and receiver wall clock time line.
The access unit in rtp streaming (video and closed caption track) can be presented in wall clock time appropriate in receiver.
Using mapping in above-mentioned steps, receiver can be determined to correspond in DASH media presentation timeline and currently be connect
Receive the time of wall clock time.The corresponding DASH period is determined using MPD, DASH indicates to include desired audio track
The URL of mark, DASH segment and the segment.
Receiver can retrieve DASH segment and subsequent segment.And using mapping come appropriate in above-mentioned steps
Wall clock time the access unit in them is presented.
Figure 82 illustrates DASH as embodiment of the invention and the conversion of time to receiver wall clock time line is presented.
When presentation time PTD relative to DASH media presentation timeline is converted into the presentation relative to NTP timeline
Between PTN, be then converted into the presentation time PTW relative to wall clock time.
Figure 83 diagram content as embodiment of the invention via DASH (unicast) delivering is passed with via ALC/LCT+
The synchronization for the content sent.
It is stated in such document, broadcast time line can be established whenever delivering continuous content via ALC/LCT+,
The base when reference of the presentation timing information in the LCT header extension being grouped for use as ACL/LCT+.It is (single via DASH in order to make
Broadcast) content and the content synchronization delivered via ALC/LCT+ (broadcast or multicast) of delivering, it can be as shown in this Fig that
Sample delivers in broadcast or multicast to be believed for establishing from DASH media presentation timeline to necessary to the mapping of broadcast time line
Breath.
The information can correspond to timeline component AU (or the i.e. grouping of broadcast time line or instant base component).
The stream sent in the presence of the heterogeneous network by such as broadcasting network and internet can broadcast system described above
A possibility that being synchronized in the receiver of system and being used for a service.For example, as illustrated, being sent out when by broadcasting network
It send video flowing and when sending audio stream, needs that two streams are synchronized, decoded and reproduced to obtain one by internet
A service.In other words, video is by broadcasting network acquisition and audio is obtained by internet to use one
Service.For example, it is desirable to check same content using the audio recorded with the language different from the language provided in broadcasting network
Spectators can be received by internet with desired language record corresponding content audio and use received by
Audio.
However, two streams have different timelines and accordingly, there is a need for the mappings executed between two timelines
Mechanism.Here, each of timeline can indicate the reproduction for being used as the data or content that send by each transmission network
Or the absolute or relative time of decoded criterion.It in service, include that content in the video sent by broadcasting network needs
Will with include by internet send audio in content it is identical.
The present embodiment is proposed to be used to send by the heterogeneous network of such as broadcasting network and internet by timeline component
Stream between synchronization method and apparatus.Timeline component stream may include one or more timeline component accesses units
(AU).Timeline component AU can be continuously arranged in timeline component.
The timeline that timeline component AU shows the stream sent by internet is mapped to through broadcasting network transmission
The example of the timeline of stream.When the header of the grouping sent by broadcasting network includes about the stream sent by broadcasting network
It can may include by heterogeneous network by the timeline component AU that broadcasting network is sent (for example, interconnection when the information of timeline
Net) decoded time stamp (DTS) of stream, the presentation time stamp (PTS) that send etc. timestamp information etc..When about by different
When the information of the timeline for the stream that network forming network (for example, internet) is sent is included in timeline component AU, about by different
The information of the timeline for the stream that network forming network (for example, internet) is sent can be packetized with the stream that is sent by broadcasting network
The identical packet configuration of packet configuration in.In this way it is possible to be included in packet header on one-to-one basis
The timestamp of the stream sent by broadcasting network is mapped to the timestamp of the stream sent by internet, and two stream can be
It is synchronized on one timeline, and is decoded and reproduced.
Presentation time stamp (PTS) is to be used to realize that the independent basic flow (for example, video, audio, subtitle) of program exists
Timestamp metadata fields in the mpeg transport stream of synchronization when being presented to spectators, mpeg program stream or similar data flow.
PTS is that (program clock reference (PCR) is according to the overall clock reference with program also sent in transport stream or program stream
System clock reference (SCR)) related unit provides.
When decoded time stamp (DTS) indicates that access unit should be removed by moment from receiver buffer and is decoded
Between.Only when picture record is used for B picture, it is different from presentation time stamp (PTS).It, can be in bit if having used DTS
PTS is provided in stream.
Foregoing description can be adapted for the case where stream sent by a network is using different timelines.For example, working as
When using solution described above, collects the stream sent by multiple heterogeneous networks and these streams are supplied to the relaying of spectators
Service provider directly executes reprocessing it is unnecessary to the synchronization of not cocurrent flow.
It can be with another format expression time line component AU of XML etc..Timeline component AU may include
Identifier information, version information, AU_length information, location_flag information, PTS_flag information, DTS_
Flag information, media_time_flag information, NTP_time_flag information, PTP_time_flag information, timecode_
Flag information, PCR_time_flag information, location_length information, location information, timescale information,
Media_time_PTS information, media_time_DTS information, NTP_time_PTS information, NTP_time_DTS information, PTP_
Time_PTS information, PTP_time_DTS information, timecode_PTS information, timecode_DTS information, PCR_time_PTS
Information and/or PCR_time_DTS information.
Identifier information is the identifier for uniquely indicating the structure of timeline component AU.
Version information can indicate the length of the timestamp field of lower PTS, DTS etc..For example, length can be with
Correspond to 64 bits when version information has value 1, and corresponds to 32 bits when version information has value 0.
The length of AU_length information instruction timeline component AU.
Whether location_flag information instruction timeline component AU includes being believed by the position of the stream of external network transmission
Breath.
PTS_flag information indicates whether timeline component AU includes pts value.
DTS_flag information indicates whether timeline component AU includes DTS value.
Media_time_flag information indicates whether to include the timestamp with media time format.
NTP_time_flag information indicates whether to include the timestamp with NTP format.
PTP_time_flag information indicates whether to include the timestamp with PTP format.
Timecode_flag information indicates whether to include with motion picture and Television Engineer association (SMPTE) time
The timestamp of code format.
PCR_time_flag information indicate whether include the based on PCR of MPEG-2TS timestamp.
The length of location_length information indicating positions field.
The URL or unique ID for the stream that the instruction of location information is sent by heterogeneous network.When location information indicates
When unique ID, which can be used by being linked to the information of signaling data etc..
Timescale information indicates media time scale.Timescale information is to be indicated for identifying by other information
The information of the unit of time.
Media_time_PTS information indicates the PTS expressed with media time format.
Media_time_DTS information indicates the DTS expressed with media time format.
NTP_time_PTS information indicates the PTS expressed with NPT format.
NTP_time_DTS information indicates the DTS expressed with NPT format.
PTP_time_PTS information indicates the PTS expressed with PTP format.
PTP_time_DTS information indicates the DTS expressed with PTP format.
PTP_time_PTS or PTP_time_DTS information can have in 32 bits, 64 bits or 80 bits
The size of any one.
Timecode_PTS information indicates the PTS expressed with SMPTE time code format.
Timecode_DTS information indicates the DTS expressed with SMPTE time code format.
PCR_time_PTS information indicates the PTS expressed with PCR format.
PCR_time_DTS information indicates the DTS expressed with PCR format.
According to an embodiment of the invention, receiver can be by least one time for being included in timeline component AU
Stab the stream that by location information is identified of the Information application in external network make the stream sent by broadcasting network with pass through it is different
The stream that network forming network is sent is synchronous.
It can be with another format expression time line component AU of XML etc..Timeline component AU may include
Identifier information, version information, AU_length information, location_flag information, PTS_flag information, DTS_
Flag information, timestamp_version_flag information, timestamp_type information, location_length information,
Location information, timescale information, media_time_PTS information, media_time_DTS information, timestamp_
Type_PTS information and/or timestamp_to_DTS information (or timestamp_type_DTS information).
Corresponding to include the identical term of the term of information in the grammer of timeline component AU described above
The description of information replaced by foregoing description.
The timestamp format of the timestamp_version_flag information instruction timeline to be mapped.For example, can refer to
Show that 32 bit formats will be used when timestamp_version_flag information has value 0, and works as timestamp_
64 bit formats will be used when version_flag information has value 1.
Timestamp_type information indicates the type of the timestamp for the timeline to be mapped.For example, timestamp_
Type information instruction type when the information has value 0x00 corresponds to media time, indicates class when the information has value 0x01
Type corresponds to NTP, and when the information has value 0x02, instruction type corresponds to PTP, and refers to when the information has value 0x03
Show that type corresponds to time code.When the information has value 0x04-0x1F, type can be defined later, and can retain
Value.
Timescale information can indicate the time scale of the media time of the expression timeline to be mapped.For example,
In MPEG-2TS, time scale can have the value of 90K.
Media_time_PTS information can indicate the presentation time stamp for the timeline to be mapped, that is, relative to reproduction quilt
The media time at the time point of execution.Media_time_PTS information can be when timestamp_version_flag value be 0
It is indicated by 32 bit formats, and is indicated when the value is 1 by 64 bit formats.
Media_time_DTS information can indicate the decoded time stamp for the timeline to be mapped, that is, relative to decoding quilt
The media time at the time point of execution.Media_time_DTS information can be when timestamp_version_flag value be 0
It is indicated by 32 bit formats, and is indicated when the value is 1 by 64 bit formats.
When timestamp_type_PTS information can indicate the presentation according to the timestamp type for the timeline to be mapped
Between stab, that is, reproduce the time point being performed.Timestamp_type_PTS information can be in timestamp_version_flag
Value is indicated when being 0 by 32 bit formats, and is indicated when the value is 1 by 64 bit formats.For example, working as timestamp_
When type field value indicates NTP, timestamp_type_PTS field value can have the time of the recovery time point based on NTP
Timestamp value.
When timestamp_type_DTS information can indicate the decoding according to the timestamp type for the timeline to be mapped
Between stab, that is, decode the time point being performed.Timestamp_type_DTS information can be in timestamp_version_flag
Value is indicated when being 0 by 32 bit formats, and is indicated when the value is 1 by 64 bit formats.For example, working as timestamp_
When type field value indicates NTP, timestamp_type_PTS field value can have the time of the decoding time point based on NTP
Timestamp value.
It is retouched sharing the upper surface of timeline between the transport stream sent by heterogeneous network by using timeline component
It, can be by the way that the timestamp of the packet header of broadcast network transport streams be mapped on one-to-one basis in the synchronization scheme stated
Timestamp including the Internet transmission stream in the timeline component AU of grouping payload shares timeline.
However, timestamp relevant information may be not present in the header of broadcast network transmission grouping.
As in the figure, when in the header that timestamp relevant information is not present in transmission grouping, timeline is needed
In origin evolution stamp additional information.It can be by the way that origin evolution stamp be mapped to the Internet transmission stream on one-to-one basis
Timestamp come between broadcasting network and internet share timeline.
It can be with the related information of the timestamp of transport stream in origin evolution stamp and heterogeneous network (for example, internet)
It is included in timeline component AU.
Origin evolution can be stabbed into the timestamp being defined as on reference time line.For example, in embodiment described above,
The timestamp of the stream sent by broadcasting network can be defined as to origin evolution stamp.
The grammer of timeline component AU according to another embodiment of the present invention is in addition to including timeline described above
It can also include stabbing related information with origin evolution except the grammer of component AU.
Timeline component AU may include identifier information, version information, AU_length information,
Location_flag information, origin_PTS_flag information, origin_DTS_flag information, origin_PTS information,
Origin_DTS information, location_length information, PTS_flag information, DTS_flag information, media_time_flag
Information, NTP_time_flag information, PTP_time_flag information, timecode_flag information, PCR_time_flag information,
Location_URL_length information, location_URL information, timescale information, media_time_PTS information,
Media_time_DTS information, NTP_time_PTS information, NTP_time_DTS information, PTP_time_PTS information, PTP_
Time_DTS information, timecode_PTS information, timecode_DTS information, PCR_time_PTS information and/or PCR_time_
DTS information.
Corresponding to term identical with the term of information in the grammer including timeline component AU described above
The description of information is replaced by foregoing description.
Origin_PTS_flag information indicates whether timeline component AU includes origin_PTS value.
Origin_DTS_flag information indicates whether timeline component AU includes origin_DTS value.
Origin_PTS information indicates PTS of the current group on the reference basal latency line that timeline maps.
Origin_DTS information indicates DTS of the current group on the reference basal latency line that timeline maps.
The length of location_URL_length information instruction location_URL information.
Location_URL information can indicate the URL of the stream sent by heterogeneous network, or uniquely identify by different
The identifier for the stream that network forming network is sent.
Receiver can from the grouping payload of the transport stream in broadcasting network acquisition time line component AU, and solve
Origin_PTS information and/or origin_DTS information in analysis timeline component AU is wide to be obtained based on the information through parsing
Broadcast the timestamp information of the transport stream in network.Receiver can be used and pass through origin_PTS information and/or origin_
DTS obtain broadcasting network in transport stream timestamp and include the heterogeneous network in timeline component AU timestamp
Related information keeps the transport stream of broadcasting network synchronous with the transport stream of heterogeneous network.
Figure 84 diagram content as embodiment of the invention via DASH (unicast) delivering is passed with via ALC/LCT+
The mode of the synchronization for the content sent.
When can have broadcast time line in ALC extension header via each continuous media component of ALC/LCT+ delivering
Clock reference timestamp, or individual broadcast " Shi Ji " component of service can deliver broadcast time line clock with interval appropriate
Reference time stamp.
It, can be with it in the case of line clock reference time stamp is included in ALC extension header between when the broadcast
Together include the corresponding DASH media presentation timeline reference time stab, with provide from DASH media presentation timeline to broadcast
The mapping of timeline.
It is right in the case of when clock reference timestamp is included in the individual broadcast of service when the broadcast in base component
The DASH media presentation timeline reference time answered stabs when can be included in individual broadcast together with which in base component, with
It provides from DASH media presentation timeline to the mapping of broadcast time line.
Just via broadcast or broadband delivery to receiver can be by the clock reference time stamp comprising " broadcast time line "
And the alternate audio that usable DASH (using protocol path reference clock/IP- multicast/UDP/IP) obtains via unicast broadband
One broadcast ip multicast stream of the correspondent time of the DASH media presentation timeline of stream, continuous component track (for example, video,
Audio and closed caption) each of a broadcast ISO BMFF flow constitute.Each ISO BMFF file (can use association
View path ISO BMFF/ALC/LCT+/IP- multicast/UDP/IP) as ACL/LCT+ object be delivered and/or one or
Multiple continuous component tracks can be used DASH (using protocol path ISO BMFF/DASH/HTTP (S)/TCP/IP) via broadband
It obtains.
Clock reference time stamp comprising " broadcast time line " and usable DASH are obtained via unicast broadband
One broadcast ip multicast stream of the correspondent time of the DASH media presentation timeline of alternate audio stream, the time scale of timeline
It is the ordinary clock time；For example, clock may be at server with the expression of certain suitable format (may be for NTP format)
UTC time.
For a broadcast ISO of each of continuous component track (for example, video, audio and closed caption)
BMFF stream, the ALC/LCT+ grouping of the beginning comprising ISO BMFF file have provide the timeline of ISO BMFF file relative to
LCT extension header at the beginning of " broadcast time line ".Make URL associated with each ISO BMFF file if necessary
(for example, if MPD is used for signaling), each ISO BMFF file can have the HTTP pattern comprising location of content field
Header.Alternatively, the ALC/LCT+ grouping of the beginning comprising ISO BMFF file can have the LCT extension report comprising association URL
Head.
We are it can be considered that a video track, an audio track and/or a closed caption track are come via broadcast
The following mixing delivering service condition that delivering and the second audio track are delivered via unicast broadband.
Figure 85 illustrates the association of the mixing delivering as embodiment of the invention using the ISO BMFF based on ALC/LCT+
Discuss stack.
It not be used to present using audio track shown in intersecting hachure grey.
Signaling can be used to determine which audio track will be presented (be in this case alternate audio rail in receiver
Mark), the ip multicast address for carrying the ALC/LCT+ of video and closed caption track and port and TSI value are obtained, clock is obtained
With reference to/the ip multicast address and port of stream are mapped, and/or obtain the MPD delivered for the broadband DASH of alternate audio stream
URL.
The URL of MPD can be used to retrieve DASH MPD in receiver.
Receiver can with timestamp occur and from clock reference/mapping stream extraction time stab, and use they
Determine the offset between " broadcast time line " and receiver " wall clock " timeline, and determine DASH media presentation timeline with
Offset between " broadcast time line ".This is generated from DASH media presentation timeline to the mapping of receiver " wall clock " timeline.
Receiver can extract video and closed caption track as video and closed caption track occur from broadcast
Broadcast ISO BMFF file.
The ALC/LCT+ of the offset determined in through the above steps and each BMFF file adjusted can be used in receiver
Presentation time stamp in extension header is that the wall clock time started is arranged in the timeline of each ISO BMFF file.
Receiver can inside timing information in the wall clock time started based on each ISO BMFF file and file
The access unit in broadcast BMFF file is presented in reasonable time.
It is mapped using the timeline obtained in above-mentioned steps, receiver can determine right in DASH media presentation timeline
It should be in the time of current bin wall clock time.The corresponding DASH period is determined using MPD, DASH is indicated comprising desired
Audio track, DASH segment and the segment URL.And DASH segment appropriate is retrieved in wall clock time appropriate and is in
Show them.
Above two method can be applied when other transport protocols are used for broadcast channel.
Broadcast system can provide real-time continuous content and NRT file is combined for more information to be presented for spectators
Broadcasted content.
For the continuous content synchronization for making the broadcast of the continuous content from non-real-time file with delivering in real time, synchronous
Conventional method can be the timeline that the timeline of content file-based is mapped to real-time continuous content.
For example, synchronize can be when the timeline of content file-based being mapped to NTP in the rtp case base or
Broadcast time line is mapped in the case of the ISO BMFF based on ALC/LCT of broadcast/multicast content.Similarly, if it is desired to make
The broadcast of continuous content from file is with via the continuous content synchronization of unicast delivery, then conventional method will will be based on file
The timeline of content be mapped to DASH media presentation timeline.
How to determine that the timeline of content file-based is likely to be dependent on file format.In order to specify synchronization mechanism, have
The clock rate of exclusive requirement timeline file-based and the first display unit in file are relative to this timeline
The time is presented.How to determine that this information of the timeline about content file-based will depend on file format.Timeline
Specified clock rate and it is corresponding with the first display unit in file at the beginning of, and all display units in file
With the presentation time relative to this timeline.
Reasonable time line map information can be sent with signal.The beginning for corresponding to file can be sent with signal
NTP time, broadcast time line time or DASH media presentation timeline time.This will allow for this timeline calculation document
In any display unit presentation time phase.
Broadcast system can encode service signaling data and be sent to service signaling data and be used to obtain extensively
Broadcast the receiver of content.
A mode for being capable of handling service signaling be define reflection service model new demand servicing signaling data structure, and
Suitable mechanism is specified for the delivering of such signaling.Such data structure will need to include being used to quote DASH MPD file
So as to support continuous component real-time unicast delivery mode.
The another way for being capable of handling service signaling is to be delivered in real time using DASH MPD structure with signal transmission
All continuous components, and increase this using some data structures to send the component of other classifications with signal.
The above method of the invention can be executed in above-mentioned transmitter or receiver.
Description of the invention is explained with reference to each attached drawing although for the sake of clarity, but can be by mutually merging attached
Embodiment shown in figure designs new embodiment.Also, those skilled in the art designs record and is used for when if necessary
The computer readable recording medium of the program of the embodiment referred in description above-mentioned is executed, then its power that may belong to accompanying
Benefit requires and the range of their equivalent.
The apparatus according to the invention and method can be not limited to configuration and the side of the embodiment mentioned in description above-mentioned
Method.Also, the embodiment mentioned in description above-mentioned can be selectively to be come in a manner of being combined with each other in whole or in part
Configuration makes it possible to carry out various modifications embodiment.
In addition, using the processor readable code in the processor readable recording medium for being allocated to network equipment, Ke Yishi
Now according to the method for the present invention.The processor readable medium may include all kinds being capable of storage processor readable data
Recording device.The processor readable medium may include ROM, RAM, CD-ROM, tape, floppy disk, optical data storage device etc.
One of, and can also include the realization such as via the carrier type of the Internet transmission.In addition, when the processor is readable
Recording medium be distributed to by internet connect computer system when, according to distributed system, can save or execution at
Manage device readable code.
It should be appreciated by those skilled in the art that can be in this hair in the case where not departing from spirit or scope of the invention
It carry out various modifications and changes in bright.Therefore, it is intended to the present invention and covers modifications and variations of the invention, as long as they falls in institute
In attached claim and its equivalent range.
Both device and method inventions are referred in the present specification, and the description of both device and method inventions can be mutual
Ground is mended to be suitable for each other.
Invention mode
To realize that optimal mode of the invention describes various embodiments.
Industrial applicibility
The present invention is available in a series of broadcast singal offer field.To those skilled in the art show and
It is clear to, not departing from spirit or scope of the invention can carry out various modifications and change in the present invention.Therefore, it anticipates
Modifications and variations of the invention are covered in the present invention, as long as they fall in the attached claims and its equivalent range.
Claims (10)
1. a kind of equipment for receiving service, the equipment include:
Broadcast network interface, the broadcast network interface are used to receive the broadcast letter including the first grouping via broadcasting network
Number, first grouping includes the first assembly for the service；
Broadband Network Interface, the Broadband Network Interface is for receiving the broadcast number including second packet via broadband network
According to, the second packet includes the second component for service, and
Wherein, the broadcast singal further comprises third grouping, and the third grouping includes about the first assembly and institute
The signaling information of the second component is stated,
Wherein, the signaling information includes the information for specifying the second packet to be delivered, and
Wherein, the signaling information further comprises for the first timing information of first assembly and for second component
Second timing information；
Processor, the processor are used for based on the group for exporting time alignment via the received signaling information of the broadcasting network
Part.
2. equipment according to claim 1,
Wherein, first grouping corresponds to real-time protocol (RTP) (RTP) and is grouped,
Wherein, the second packet carries dynamic adaptation stream (DASH) segment of MPEG based on HTTP, and
Wherein, the third grouping corresponds to RTP Control Protocol (RTCP) and is grouped.
3. equipment according to claim 2,
Wherein, first timing information corresponds to the RTP timestamp of first grouping,
Wherein, second timing information corresponds to DASH media presentation temporal information, and
Wherein, third timing information corresponds to Network Time Protocol (NTP) timestamp.
4. equipment according to claim 1,
Wherein, the third grouping further comprises the format information for specifying the format of second timing information.
5. equipment according to claim 1, wherein when the header of first grouping includes the network of the first assembly
Between agreement (NTP) timestamp information.
6. a kind of method for receiving service in the receiver, which comprises
The broadcast singal including the first grouping is received via broadcasting network, first grouping includes for the service
One component；
The wideband data including second packet is received via broadband network, the second packet includes for the service
Two components；And
Wherein, the broadcast singal further comprises third grouping, and the third grouping includes about the first assembly and institute
The signaling information of the second component is stated,
Wherein, the signaling information includes the information for specifying the second packet to be delivered, and
Wherein, the signaling information further comprises for the first timing information of first assembly and for the second of the second component
Timing information；
The component of time alignment is exported based on the signaling information received via the broadcasting network.
7. according to the method described in claim 6,
Wherein, first grouping corresponds to real-time protocol (RTP) (RTP) and is grouped,
Wherein, the second packet carries dynamic adaptation stream (DASH) segment of MPEG based on HTTP, and
Wherein, the third grouping corresponds to RTP Control Protocol (RTCP) and is grouped.
8. according to the method described in claim 7,
Wherein, first timing information corresponds to the RTP timestamp of first grouping,
Wherein, second timing information corresponds to DASH media presentation temporal information, and
Wherein, third timing information corresponds to Network Time Protocol (NTP) timestamp.
9. according to the method described in claim 6,
Wherein, the third grouping further comprises the format information for specifying the format of second timing information.
10. according to the method described in claim 6, wherein, the header of first grouping includes the network of the first assembly
Time protocol (NTP) timestamp information.
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201461926938P | 2014-01-13 | 2014-01-13 | |
| US61/926,938 | 2014-01-13 | ||
| US201461932808P | 2014-01-29 | 2014-01-29 | |
| US61/932,808 | 2014-01-29 | ||
| US201461948522P | 2014-03-05 | 2014-03-05 | |
| US61/948,522 | 2014-03-05 | ||
| US201461970908P | 2014-03-27 | 2014-03-27 | |
| US61/970,908 | 2014-03-27 | ||
| PCT/KR2015/000295 WO2015105391A1 (en) | 2014-01-13 | 2015-01-12 | Apparatuses and methods for transmitting or receiving a broadcast content via one or more networks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105917655A CN105917655A (en) | 2016-08-31 |
| CN105917655B true CN105917655B (en) | 2019-07-09 |
Family
ID=53524154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580004446.4A Active CN105917655B (en) | 2014-01-13 | 2015-01-12 | The device and method of broadcasted content are sent or received via one or more network |
Country Status (6)
| Country | Link |
|---|---|
| US (3) | US10326816B2 (en) |
| EP (1) | EP3095245A4 (en) |
| JP (1) | JP6309639B2 (en) |
| KR (1) | KR101789641B1 (en) |
| CN (1) | CN105917655B (en) |
| WO (1) | WO2015105391A1 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104579940B (en) * | 2013-10-10 | 2017-08-11 | 新华三技术有限公司 | Search the method and device of accesses control list |
| JP5725242B1 (en) * | 2014-06-04 | 2015-05-27 | ソニー株式会社 | Transmitting apparatus, transmitting method, receiving apparatus, and receiving method |
| WO2016139909A1 (en) * | 2015-03-02 | 2016-09-09 | 日本電気株式会社 | Decoding device, reception device, transmission device, transmission/reception system, decoding method, and storage medium having decoding program stored therein |
| KR102137349B1 (en) | 2015-03-02 | 2020-07-23 | 닛본 덴끼 가부시끼가이샤 | Decoding device, reception device, transmission device, transmission/reception system, decoding method, and storage medium having decoding program stored therein |
| US10567816B2 (en) | 2015-04-30 | 2020-02-18 | Comcast Cable Communications, Llc | Delivering content |
| US11109101B1 (en) * | 2015-05-13 | 2021-08-31 | T-Mobile Usa, Inc. | Apparatus, system, and method for ABR segment pull DVR |
| MX2018006721A (en) * | 2015-12-10 | 2018-08-01 | Sony Corp | Receiver and data processing method. |
| JP2018006846A (en) * | 2016-06-28 | 2018-01-11 | 日本放送協会 | Synchronous presentation system, synchronous presentation method, and synchronous presentation program |
| US20180014171A1 (en) * | 2016-07-05 | 2018-01-11 | Qualcomm Incorporated | Management of emergency alert wake up bits |
| US11284229B2 (en) * | 2017-02-17 | 2022-03-22 | Nippon Telegraph And Telephone Corporation | Sensing system and time stamp correction method |
| EP3591908B9 (en) * | 2017-03-23 | 2022-04-06 | Huawei Technologies Co., Ltd. | Method and device for lip-speech synchronization among multiple devices |
| CN108737349B (en) * | 2017-04-24 | 2020-08-28 | 大唐移动通信设备有限公司 | Voice data packet processing method and device |
| CN108989843B (en) * | 2017-06-02 | 2020-10-16 | 上海数字电视国家工程研究中心有限公司 | Design method and transmission system of data frame suitable for high-speed motion reception |
| CN108989842B (en) * | 2017-06-02 | 2020-12-22 | 上海数字电视国家工程研究中心有限公司 | Design method and transmission system of data frame suitable for high-speed motion reception |
| CN110166155B (en) * | 2019-05-14 | 2020-09-22 | 南京熊猫电子股份有限公司 | Emergency broadcast multi-channel streaming media broadcasting method and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103109540A (en) * | 2010-07-19 | 2013-05-15 | Lg电子株式会社 | Method for transceiving media files and device for transmitting/receiving using same |
| CN103155584A (en) * | 2010-10-15 | 2013-06-12 | 汤姆逊许可公司 | Method for synchronizing multimedia flows and corresponding device |
| WO2013089437A1 (en) * | 2011-12-12 | 2013-06-20 | 엘지전자 주식회사 | Device and method for receiving media content |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2859859A1 (en) | 2003-09-16 | 2005-03-18 | France Telecom | Television signals receiving method for multimedia receiver, involves restoring components on reception terminal while respecting chronology of secondary time stamps to restore coherent AV content formed by components to user |
| JP3841103B1 (en) * | 2005-07-14 | 2006-11-01 | 住友電装株式会社 | Electrical junction box with spare fuse compartment |
| KR101091910B1 (en) * | 2005-12-29 | 2011-12-08 | 삼성테크윈 주식회사 | Method for controlling video server using real-time transport protocol, and record medium thereof |
| ES2355767T3 (en) * | 2006-08-28 | 2011-03-30 | Hans R. Suess | ANHYDRA DERMATOLOGICAL OR COSMETIC PREPARATION, WITH CONTENT IN UREA. |
| US9236091B2 (en) | 2007-07-02 | 2016-01-12 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for processing and reading a file having a media data container and a metadata container |
| EP2191402A4 (en) * | 2007-08-20 | 2014-05-21 | Nokia Corp | Segmented metadata and indexes for streamed multimedia data |
| WO2009150578A2 (en) * | 2008-06-11 | 2009-12-17 | Koninklijke Philips Electronics N.V. | Synchronization of media stream components |
| US8776144B2 (en) * | 2008-10-16 | 2014-07-08 | Industrial Technology Research Institute | Mobile TV system and method for synchronizing the rendering of streaming services thereof |
| US20110066746A1 (en) * | 2009-09-11 | 2011-03-17 | Broadcom Corporation | Synchronized data streaming |
| US9026671B2 (en) * | 2011-04-05 | 2015-05-05 | Qualcomm Incorporated | IP broadcast streaming services distribution using file delivery methods |
| US8923342B2 (en) * | 2011-07-12 | 2014-12-30 | Electronics And Telecommunications Research Institute | Method of providing timing information for synchronizing MMT packet stream in MMT hybrid delivery service and method of synchronizing MMT packet stream in MMT hybrid delivery service |
| US9282354B2 (en) * | 2011-10-28 | 2016-03-08 | Qualcomm Incorporated | Method and apparatus to detect a demand for and to establish demand-based multimedia broadcast multicast service |
| CN104025616A (en) * | 2011-12-27 | 2014-09-03 | 索尼公司 | Information processing device, information processing method, program, application information table supply device and application information table supply method |
| US9954717B2 (en) * | 2012-07-11 | 2018-04-24 | Futurewei Technologies, Inc. | Dynamic adaptive streaming over hypertext transfer protocol as hybrid multirate media description, delivery, and storage format |
| US20140156865A1 (en) * | 2012-11-30 | 2014-06-05 | Futurewei Technologies, Inc. | Generic Substitution Parameters in DASH |
| US9807452B2 (en) * | 2013-10-07 | 2017-10-31 | Samsung Electronics Co., Ltd. | Practical delivery of high quality video using dynamic adaptive hypertext transport protocol (HTTP) streaming (DASH) without using HTTP in a broadcast network |
| WO2016018042A1 (en) * | 2014-07-31 | 2016-02-04 | Lg Electronics Inc. | Apparatus and method for transmitting/receiving processes of a broadcast signal |
| US20180232287A1 (en) * | 2015-10-09 | 2018-08-16 | Sony Corporation | Information processing apparatus and information processing method |
| US20210288735A1 (en) * | 2016-08-19 | 2021-09-16 | Sony Corporation | Information processing apparatus, client apparatus, and data processing method |
| JP2021129127A (en) * | 2018-05-08 | 2021-09-02 | ソニーグループ株式会社 | Reception device, transmission device, reception method, transmission method, and program |
-
2015
- 2015-01-12 JP JP2016546500A patent/JP6309639B2/en active Active
- 2015-01-12 US US15/104,418 patent/US10326816B2/en active Active
- 2015-01-12 KR KR1020167018026A patent/KR101789641B1/en active IP Right Grant
- 2015-01-12 CN CN201580004446.4A patent/CN105917655B/en active Active
- 2015-01-12 EP EP15735150.3A patent/EP3095245A4/en not_active Withdrawn
- 2015-01-12 WO PCT/KR2015/000295 patent/WO2015105391A1/en active Application Filing
-
2019
- 2019-05-15 US US16/413,042 patent/US11095703B2/en active Active
-
2021
- 2021-07-06 US US17/368,431 patent/US11477259B2/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103109540A (en) * | 2010-07-19 | 2013-05-15 | Lg电子株式会社 | Method for transceiving media files and device for transmitting/receiving using same |
| CN103155584A (en) * | 2010-10-15 | 2013-06-12 | 汤姆逊许可公司 | Method for synchronizing multimedia flows and corresponding device |
| WO2013089437A1 (en) * | 2011-12-12 | 2013-06-20 | 엘지전자 주식회사 | Device and method for receiving media content |
Also Published As
| Publication number | Publication date |
|---|---|
| US11095703B2 (en) | 2021-08-17 |
| JP2017509199A (en) | 2017-03-30 |
| KR101789641B1 (en) | 2017-11-20 |
| CN105917655A (en) | 2016-08-31 |
| US20160315991A1 (en) | 2016-10-27 |
| US10326816B2 (en) | 2019-06-18 |
| EP3095245A4 (en) | 2017-11-08 |
| US11477259B2 (en) | 2022-10-18 |
| US20210344734A1 (en) | 2021-11-04 |
| JP6309639B2 (en) | 2018-04-11 |
| WO2015105391A1 (en) | 2015-07-16 |
| KR20160091422A (en) | 2016-08-02 |
| US20190268397A1 (en) | 2019-08-29 |
| EP3095245A1 (en) | 2016-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105917655B (en) | The device and method of broadcasted content are sent or received via one or more network | |
| CN106031181B (en) | Broadcast singal sending device, broadcasting signal receiving, broadcast singal sending method and broadcast signal received method | |
| CN106537822B (en) | Broadcast transmitting apparatus and its method, apparatus for receiving broadcasting and its method for handling data for handling data | |
| CN105325006B (en) | Send the device of broadcast singal, the device of method and reception broadcast singal, method | |
| CN105917654B (en) | The device and method of broadcasted content are sent or received via one or more network | |
| CN105684392B (en) | The method for sending broadcast singal, the equipment for sending broadcast singal, the method for receiving broadcast singal and the equipment for receiving broadcast singal | |
| CN105493499B (en) | The equipment for sending broadcast singal, the equipment for receiving broadcast singal, the method for sending broadcast singal and the method for receiving broadcast singal | |
| CN105659567B (en) | The device for sending broadcast singal, the device for receiving broadcast singal, the method for sending broadcast singal and the method for receiving broadcast singal | |
| CN106165433B (en) | The operating method of broadcast transmitting device, broadcast receiver and broadcast receiver | |
| CN105900435B (en) | Broadcast transmitting device and its operating method and broadcast receiver and its operating method | |
| CN105850140B (en) | Broadcast singal sending device, broadcast receiver, broadcast singal sending method and broadcast signal received method | |
| CN107005722A (en) | The device for sending broadcast singal, the device for receiving broadcast singal, the method for transmission broadcast singal and the method for receiving broadcast singal | |
| CN105580379B (en) | Broadcast transmitting apparatus, the operating method of broadcast transmitting apparatus, the operating method of apparatus for receiving broadcasting and apparatus for receiving broadcasting | |
| CN105917653A (en) | Broadcast transmission device and operating method thereof, and broadcast reception device and operating method thereof | |
| CN106464677A (en) | Method and apparatus for transmitting/receiving broadcast signal | |
| CN106464929A (en) | Broadcast signal transmitting/receiving method and device | |
| CN106464928A (en) | Broadcast signal transmission device, broadcast signal receiving device, broadcast signal transmission method and broadcast signal receiving method | |
| KR101844235B1 (en) | Apparatuses and methods for transmitting or receiving a broadcast content via one or more networks | |
| CN106031178A (en) | Broadcast transmission device and operating method thereof, and broadcast reception device and operating method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |